can yall awnser this asap pls I NEED TO PASS!!

Can Yall Awnser This Asap Pls I NEED TO PASS!!
Can Yall Awnser This Asap Pls I NEED TO PASS!!
Can Yall Awnser This Asap Pls I NEED TO PASS!!
Can Yall Awnser This Asap Pls I NEED TO PASS!!

Answers

Answer 1

Answer: 36 inches

Step-by-step explanation:

The lateral surface area of a cube with sides of length 3 inches is given by the sum of the areas of all four side faces. Each side face is a square with an area equal to the product of the length and width, which in this case is 3 inches by 3 inches. Therefore, the lateral surface area of the cube is:

LSA = 4 x (3 inches x 3 inches) = 36 square inches

So the lateral surface area of the cube is 36 square inches


Related Questions

1. All square, upper triangular matrices are diagonalizable. (T/F)
2. If a matrix is diagonalizable, then it is invertible. (T/F)

Answers

1. All square, upper triangular matrices are diagonalizable. (TRUE)

2. If a matrix is diagonalizable, then it is invertible. (FALSE)

Understanding matrix

1. True: All square, upper triangular matrices are diagonalizable.

A square matrix is diagonalizable if it can be transformed into a diagonal matrix by a similarity transformation, which means there exists an invertible matrix P such that P^-1 * A * P is a diagonal matrix. Upper triangular matrices have all their elements below the main diagonal equal to zero.

Since the eigenvalues of an upper triangular matrix are equal to its diagonal elements, we can form a diagonal matrix with these eigenvalues. Since there exists such a diagonal matrix, all square, upper triangular matrices are diagonalizable.

2. False: If a matrix is diagonalizable, it is not necessarily invertible

Diagonalizable matrices can be transformed into a diagonal matrix with the eigenvalues along the main diagonal.

However, invertibility requires that the matrix have a nonzero determinant, which means that all of its eigenvalues must be nonzero.

If a diagonalizable matrix has a zero eigenvalue, its determinant will be zero, and it will not be invertible. Therefore, diagonalizability does not guarantee invertibility.

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Qn in attachment. ..​

Answers

Answer:

pls mrk me brainliest (⁠・⁠(⁠ェ⁠)⁠・⁠)

Find the radius of the circle with equation x² + y² = 12²

Answers

Answer:

The equation of a circle with center (a,b) and radius r is given by:

(x - a)² + (y - b)² = r²

Comparing this to the equation x² + y² = 12², we can see that the center of the circle is (0,0) and the radius is 12. Therefore, the radius of the circle is 12 units.

Can someone please help me ASAP? It’s due tomorrow. I will give brainliest if it’s correct. Show work.

Answers

the probability of choosing H or P in either selection is 0.84

How to find the probability?

Two random letters are selected from the word Happy, and we want to find the probability of choosing H or P in either selection.

There are 5 letters, 1 is an H, 2 are P's.

Then the probability of selecting one of these 3 in the first selection is:

p = 3/5 = 0.6

And if we don't chose any of these in the first selection we had the probability:

q = 2/5 = 0.4 (choosing one of the a's)

the probability of choosing one of the p's or the H in the second is again:

q' = 3/5 = 0.6

The joint probability is:

Q = q*q' = 0.4*0.6 = 0.24

Then the total probability is:

p + Q = 0.6 + 0.24 = 0.84

The correct option is the second one.

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CAN SOMEONE SHOW ME STEP BY STEP ON HOW TO DO THIS
A city just opened a new playground for children in the community. An image of the land that the playground is on is shown.

A polygon with a horizontal top side labeled 45 yards. The left vertical side is 20 yards. There is a dashed vertical line segment drawn from the right vertex of the top to the bottom right vertex. There is a dashed horizontal line from the bottom left vertex to the dashed vertical, leaving the length from that intersection to the bottom right vertex as 10 yards. There is another dashed horizontal line that comes from the vertex on the right that intersects the vertical dashed line, and it is labeled 12 yards.

What is the area of the playground?

900 square yards

855 square yards

1,710 square yards

Answers

The area of the playground include the following: 900 square yards.

How to calculate the area of a regular polygon?

In Mathematics and Geometry, the area of a regular polygon can be calculated by using this formula:

Area = (n × s × a)/2

Where:

n is the number of sides.s is the side length.a is the apothem.

In Mathematics and Geometry, the area of a parallelogram can be calculated by using the following formula:

Area of a parallelogram, A = base area × height

Area of playground, A = 45 × 20

Area of a playground, A = 900 square yards.

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Your doing practice 6

Answers

The union set of A and B is A∪B={1, 2, 3, 4, 5, 6, 7, 9}.

Given that, A={x|x is an odd number greater than 0 and less than 10} and B={2, 3, 4, 5, 6}.

Here, set A={1, 3, 5, 7, 9}

Now, A∪B = {1, 3, 5, 7, 9}∪{2, 3, 4, 5, 6}

= {1, 2, 3, 4, 5, 6, 7, 9}

Therefore, the union set of A and B is A∪B={1, 2, 3, 4, 5, 6, 7, 9}.

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Mrs. Baker conducted a survey in her classroom to determine what the students preferred to


do during the summer break. Her survey revealed that 21 out of 30 students preferred to go


swimming during the summer. If the school has a total of 1200 students, how many do


you


predict might enjoy swimming during the summer break? *


(5 Points)

Answers

To predict how many students might enjoy swimming during the summer break, we will use the information from Mrs. Baker's survey. According to her survey, 21 out of 30 students preferred to go swimming during the summer break.

Step 1: Find the fraction representing the proportion of students who preferred swimming:
21 students preferred swimming / 30 total students = 21/30

Step 2: Simplify the fraction by dividing the numerator and denominator by their greatest common divisor (GCD), which is 3:
[tex](21 ÷ 3) / (30 ÷ 3) = 7/10[/tex]

Step 3: Use the simplified fraction to predict the number of students who might enjoy swimming in a school with 1200 students:
[tex]7/10 * 1200 = (7 * 1200) / 10[/tex]

Step 4: Perform the calculations:
[tex]7 * 1200 = 8400[/tex]
8400 / 10 = 840

Your answer: Based on Mrs. Baker's survey, we predict that approximately 840 students out of the total 1200 students might enjoy swimming during the summer break.

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Which triangle will always have the same area, no matter how it is drawn? A А a right triangle that has two 45° angles an obtuse triangle that has two 30° angles © a right triangle that has two 5-inch-long sides an obtuse triangle that has two 5-inch-long sides​

Answers

The triangle that will always have the same area, no matter how it is drawn, is a right triangle that has two 45° angles. The correct answer is option A

This is because any right triangle with two 45° angles is a special type of triangle called an isosceles right triangle. In an isosceles right triangle, the two legs are congruent, which means they have the same length. Therefore, no matter how the triangle is drawn, its area will always be the same.

To see why this is true, let's use the formula for the area of a right triangle:

Area = (base x height) / 2

In an isosceles right triangle, the base and height are congruent, so we can write:

Area = (leg x leg) / 2

Simplifying this expression, we get:

Area = (leg^2) / 2

Since the legs of an isosceles right triangle are congruent, we can substitute leg for both legs in the formula:

Area = (leg^2) / 2 = (leg x leg) / 2

No matter how the triangle is drawn, the legs will have the same length, so the area of the triangle will always be the same.

Therefore, the correct answer is option A, a right triangle that has two 45° angles.

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12. [0/1 Points] DETAILS PREVIOUS ANSWERS LARCALC9 11.7. Convert the point from rectangular coordinates to spherical coordinates. (7,7, 2/7) (0, 0, 4) = ( 3V 14, 7,61.87 ). x Submit Answer

Answers

The spherical coordinates for the given rectangular coordinates (7, 7, 2/7) are (ρ, θ, φ) = (10, 45°, 88.57°) or (10, π/4, 1.545) in radians.

We'll need to find ρ (rho), θ (theta), and φ (phi) using the given rectangular coordinates (x, y, z). Here's the step-by-step process:

1. Calculate ρ (rho): ρ is the distance from the origin to the point in 3D space. You can find it using the formula: ρ = √(x² + y² + z²)

In this case, x = 7, y = 7, and z = 2/7.

Plugging these values into the formula: ρ = √(7² + 7² + (2/7)²) ρ = √(49 + 49 + 4/49) ρ = √(98 + 4/49) ρ = √(4900/49) ρ = 10

2. Calculate θ (theta): θ is the angle in the xy-plane, measured from the positive x-axis. You can find it using the formula: θ = arctan(y/x)

In this case, x = 7 and y = 7.

Plugging these values into the formula: θ = arctan(7/7) θ = arctan(1) θ = 45° (in degrees) or π/4 (in radians)

3. Calculate φ (phi): φ is the angle between the positive z-axis and the line connecting the origin to the point. You can find it using the formula: φ = arccos(z/ρ)

In this case, z = 2/7 and ρ = 10.

Plugging these values into the formula: φ = arccos((2/7)/10) φ = arccos(1/35) φ ≈ 88.57° (in degrees) or ≈ 1.545 (in radians)

So, the spherical coordinates for the given rectangular coordinates (7, 7, 2/7) are (ρ, θ, φ) = (10, 45°, 88.57°) or (10, π/4, 1.545) in radians.

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When viewed from a distance of 32 feet from its base the top of the flagpole can be seen from the ground at an angle of elevation of 39° what is the height of the flagpole

Answers

The height of the flagpole is approximately 23.7 feet.

We can use the tangent function to solve this problem. Let's call the height of the flagpole "h". From the ground, we have a right triangle with the flagpole height as the opposite side, the distance to the flagpole as the adjacent side, and the angle of elevation as the angle opposite the flagpole height.

Using the tangent function, we can write:

tan(39°) = h/32

Solving for h, we get:

h = 32 * tan(39°)

h ≈ 23.7 feet

Therefore, the height of the flagpole is approximately 23.7 feet when viewed from a distance of 32 feet at an angle of elevation of 39°.

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Steph Curry posts a video of a puppy playing the piano and shares it with 4 of his friends. The video goes viral and the number of shares increases by a factor of 10 every minute.


a. Write an equation to model this situation.


b. What is the average rate of change for the number of shares from 2 minutes to 4 minutes?

Answers

An equation to model this situation will be S(t) = 4 * 10^(t). The average rate of change for the number of shares from 2 minutes to 4 minutes is approximately 19,800 shares per minute.

a. Let S(t) be the number of shares of the video at time t in minutes after Steph Curry shared it with his friends. The initial number of shares is 4 (the 4 friends he shared it with), and the number of shares increases by a factor of 10 every minute. Therefore, we can model this situation with the exponential function:

S(t) = 4 * 10^(t)

b. The average rate of change for the number of shares from 2 minutes to 4 minutes can be calculated by finding the slope of the line connecting the points (2, S(2)) and (4, S(4)) on the graph of S(t). Using the equation S(t) = 4 * 10^(t), we have:

S(2) = 4 * 10^(2) = 400

S(4) = 4 * 10^(4) = 40,000

The slope of the line connecting these two points is:

(S(4) - S(2)) / (4 - 2) = (40,000 - 400) / 2 = 19,800

Therefore, the average rate of change for the number of shares from 2 minutes to 4 minutes is approximately 19,800 shares per minute.

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Put the numbers in order from least to greatest.
4.27, 2.704, 4.2, 2.74, 4.72

Answers

Answer:  In order least to greatest, our answer would be-

2.704 ,  2.74  ,  4.2  , 4.27  ,  4.72

.70 is less than .74. In the second set of numbers .2 is less than .27, while they are all less than .72, which gives us the number arrangement above.

I hope this helped & Good Luck!!!

Answer: The answer is 2.704, 2.74, 4.2, 4.27, 4.72

Step-by-step explanation:

Write an expression for the nth term of the sequence. (Your formula should work for n=1,2,...) 4 5 6 7 5 6 7 8 Need Help? Watch

Answers

The nth term of the sequence 4 5 6 7 5 6 7 8 is given by a_n = 3 + (n-1)/2 for odd n and a_n = 4 + (n-2)/2 for even n.

How to find the nth term of a given sequence?

To find the nth term of the given sequence, we need to observe the pattern in the sequence. We can see that the sequence consists of two parts:

the first part is a consecutive sequence of integers starting from 4, and the second part is a consecutive sequence of integers starting from 5, where the second part starts right after the first part ends.

So, we can express the nth term of the sequence as follows:

If n is odd, then the nth term is given by:

a_n = 3 + (n-1)/2

If n is even, then the nth term is given by:

a_n = 4 + (n-2)/2

Using this formula, we can find any term of the given sequence by plugging in the corresponding value of n. For example:

When n=1, the first term is 4: a_1 = 4.

When n=6, the sixth term is 6: a_6 = 6.

When n=7, the seventh term is 7: a_7 = 7.

When n=8, the eighth term is 8: a_8 = 8.

Note that this formula works only for n = 1, 2, 3, 4, 5, 6, 7, 8, ... , since the sequence has only 8 terms.

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a pet store has 115 fish and each tank can hold six fish how many tanks do you nedd

Answers

Answer:

20 tanks

Step-by-step explanation:

if each tank holds 6 fish and there are 115 fish, you need to divide the amount of fish total by amount that go in 1 tank:

115/6 = 19.1666666667

Now we round up bc we cant leave any fish out right?

So your answer is 20 tanks will be needed to hold 115 fish if it’s 6 fish per tank.

Check this by multiplying the tanks and fish in every tank:

20 x 6 = 120

Meaning that 115 fish go into 20 tanks, one of the tanks just having 1 fish :D

Answer: 20 is the correct option.

Step-by-step explanation:Given that a pet store has 115 fish that need to be placed into fish tanks and each tank hold 6 fish.

We are to find the number of tanks that the store need.

We will be using the UNITARY method to solve the given problem.

Number of tanks needed to store 6 fishes = 1.

So, number of tanks needed to store 1 fish will be [tex]\frac{1}{6}[/tex]

Therefore, number of tanks needed to store 115 fishes is given by

[tex]\frac{1}{6}[/tex] × 155 =[tex]\frac{115}{6}[/tex]= 19 [tex]\frac{1}{6}[/tex] = 19.16.

Since we cannot have 0.16 tank, so we need one tank more than 19 to store all fishes.

Thus, the store needs 20 tanks for 115 fishes.

Hope this helps :)

PLEASE HELP
A survey was done that asked people to indicate whether they prefer saltwater fishing or freshwater fish in the results of the survey are shown in the two way table
complete a relative frequency table from this data.
enter your answer is rounded to the nearest 10th of a percent in the boxes

Answers

According to the above, the fishing population is divided into 53% prefer fresh water and 47% prefer salt water.

To find the percentage of people that make up each group, we must find the total number of people who were surveyed:

228 + 245 + 242 + 285 = 1,000

Once we find the total number of people who took the survey, we can find the percentage of each value by making rules of three as shown below:

Age 30 and younger and Saltwater fishing:

1,000 = 100%

228 = ?%

Hence, We get;

228 x 100 / 1,000 = 22.8%

Age 30 and younger and Freshwater fishing:

1,000 = 100%

245 = ?%

245 x 100 / 1,000 = 24.5%

Over 30 years old and Saltwater fishing:

1,000 = 100%

242 = ?%

242 * 100 / 1,000 = 24.2%

Over 30 years old and Freshwater fishing:

1,000 = 100%

285 = ?%

285 * 100 / 1,000 = 28.5%

To find the other percentages we must find the total number of fishermen by age ranges and by fishing preference:

Age ranges

228 + 245 = 473

242 + 285 = 527

1,000 = 100%

473 = ?%

473 * 100 / 1,000 = 47.3%

1,000 = 100%

527 = ?%

527 * 100 / 1,000 = 52.3%

Fishing mode preferences

228 + 242 = 470

245 + 285 = 530

1,000 = 100%

530 = ?%

530 * 100 / 1,000 = 53%

1,000 = 100%

547 = ?%

470 * 100 / 1,000 = 47%

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The amount of a popular drink in bottles has the normal distribution with the mean = 101. 5 milliliters (mL) and the standard deviation = 1. 6 milliliters (mL). If n = 36 bottles are randomly selected, find the probability that the average content in these selected bottles is smaller than 102. 1 milliliters (mL)

Answers

The probability of the normal distribution with given mean and standard deviation representing average content in the selected bottles is smaller than 102.1 mL is equal to 0.9878.

Distribution of the sample means of a normal distribution ,

Mean μ = 101.5 mL

Standard deviationσ = 1.6 mL

sample size n = 36

For normal distribution,

Standard deviation of the sample means is,

σ/√n

= 1.6/√36

= 0.2667 mL

Probability that the average content in the selected bottles is smaller than 102.1 mL,

Standardize the sample mean using the formula,

z = (X- μ) / (σ/√n)

where X is the sample mean.

Substituting the values, we get,

⇒z = (102.1 - 101.5) / (0.2667)

⇒ z = 2.25

Using a standard normal distribution table ,

Probability of a z-score being less than 2.25 is approximately 0.9878.

Therefore, the probability that the average content in the selected bottles is smaller than 102.1 mL is approximately 0.9878.

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Shirts are packed at random in two sizes, regular and extra-large. four shirts are selected from a box of 24 and checked for size. if there are 15 regular shirts in the box, find the probability that all 4 will be regular size.

Answers

The probability that all four shirts selected from the box of 24 will be regular size is 0.1367 or 13.67%.

Probability refers to the likelihood or chance of an event occurring. In this scenario, we are interested in finding the probability that all four shirts selected from the box of 24 will be regular size.

To determine this probability, we first need to find the total number of ways in which we can select four shirts from the box. This is known as the sample space and can be calculated using the combination formula, which is nCr = n!/(r!(n-r)!). In this case, we have 24 shirts and are selecting four, so the sample space is 24C4 = (24!)/(4!(24-4)!) = 10,626.

Next, we need to find the number of ways in which we can select four regular shirts from the 15 available. This can be calculated using the same combination formula, which is 15C4 = (15!)/(4!(15-4)!) = 1,455.

Finally, we can calculate the probability of selecting all four regular shirts by dividing the number of favorable outcomes (i.e., selecting four regular shirts) by the total number of possible outcomes (i.e., the sample space). So, the probability of selecting all four regular shirts is 1,455/10,626 = 0.1367 or 13.67%.

Therefore, the probability that all four shirts selected from the box of 24 will be regular size is 0.1367 or 13.67%.

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Suppose that a report by a leading medical organization claims that the healthy human heart beats an average of 72 times per minute. Advances in science have led some researchers to question if the healthy human heart beats an entirely different amount of time, on average, per minute. They obtain pulse rate data from a sample of 85 healthy adults and find the average number of heart beats per minute to be 76, with a standard deviation of 13. Before conducting a statistical test of significance, this outcome needs to be converted to a standard score, or a test statistic. What would that test statistic be

Answers

The test statistic (or standard score) would be 1.72.

To convert the outcome of the pulse rate data to a standard score, we would need to calculate the z-score. The formula for the z-score is: (sample mean - population mean) / (standard deviation / square root of sample size).

In this case, the sample mean is 76, the population mean (according to the report) is 72, the standard deviation is 13, and the sample size is 85. Plugging these values into the formula, we get:

(76 - 72) / (13 / sqrt(85)) = 1.72.

Therefore, the test statistic (or standard score) is 1.72. This indicates that the sample mean of 76 is 1.72 standard deviations above the population mean of 72. This information can be used to conduct a statistical test of significance and determine whether the difference between the sample mean and population mean is statistically significant.

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John rides his bike 68 km south and then 6 km went. How far is he from his starting point?

Answers

John is approximately 68.26 km away from his starting point after riding 68 km south and then 6 km west.

To find out how far John is from his starting point after riding 68 km south and then 6 km west, we will use the Pythagorean theorem.

The Pythagorean theorem states that in a right-angled triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. In this case, we will consider the 68 km south as one side, and the 6 km west as the other side, with the distance from the starting point being the hypotenuse.

Step 1: Square the lengths of the two given sides.
68^2 = 4624
6^2 = 36

Step 2: Add the squared values together.
4624 + 36 = 4660

Step 3: Find the square root of the sum to get the length of the hypotenuse (distance from the starting point).
√4660 ≈ 68.26 km

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17. Determine whether the two figures are similar. If so, give the similarity ratio of *
the smaller figure to the larger figure. The figures are not drawn to scale.
6 ft
8 ft
6 ft
Yes; 3:5
Yes; 2:3
OYes; 2:5
10 ft
12 ft
10 ft
No they are not similar

Answers

The answer is "No they are not similar". The correct option is D.

To determine if the two cuboids are similar, we need to check if their corresponding sides are proportional.

If we compare the corresponding sides of the first cuboid and the second cuboid, we get:

6/10 = 0.6

8/12 = 0.666...

6/10 = 0.6

Since these ratios are not equal, the corresponding sides are not proportional, and therefore the two cuboids are not similar.

Therefore, the answer is "No they are not similar".

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Which detail adds tension to the rising action of the story?

Mowgli grows stronger and learns life lessons without knowing it. Mother Wolf tells Mowgli that some day he will have to kill Shere Khan. Mowgli forgets his mother’s advice because he is a young boy. Mowgli would call himself a wolf if he had the ability to speak like a human

Answers

The detail that adds tension to the rising action of the story is when Mother Wolf tells Mowgli that some day he will have to kill Shere Khan.

This statement introduces a sense of conflict and foreshadows a significant challenge that Mowgli must face in the future. The idea of Mowgli, a young boy raised by wolves, confronting and defeating the powerful and dangerous Shere Khan adds suspense to the story, as readers anticipate the eventual showdown between these two characters.

Other details, such as Mowgli growing stronger and learning life lessons, or Mowgli forgetting his mother's advice, are relevant to his character development, but do not contribute as directly to the story's tension. Similarly, Mowgli considering himself a wolf and lacking the ability to speak like a human reflects his unique upbringing, but does not add tension in the same way as the impending confrontation with Shere Khan.

In conclusion, Mother Wolf's warning about Mowgli's future encounter with Shere Khan adds tension to the rising action of the story, as it sets up an exciting and challenging conflict for the protagonist to face, capturing the reader's interest and anticipation.

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Find the probability that a point chosen randomly inside the rectangle is in each given shape. Round to the nearest tenth.

(a) Square
(b) Not the triangle

Answers

The probabilities are given as follows:

a) Square: 1/6.

b) Not the triangle: 43/48.

How to calculate a probability?

A probability is calculated as the division of the desired number of outcomes by the total number of outcomes in the context of a problem/experiment.

The area of the rectangle is given as follows:

A = 12 x 8 = 96.

(area of rectangle, multiply the dimensions).

The areas of each figure are given as follows:

Square: 4² = 16. (area of square is the square of the side length).Triangle: 0.5 x 4 x 5 = 10. (area of right triangle is half the multiplication of the side lengths).

Hence the probability of the square is given as follows:

p = 16/96 = 1/6.

(area of square divided by total area).

The probability that the region is not the triangle is given as follows:

p = (96 - 10)/96

p = 86/96

p = 43/48.

(triangle and not triangle are complementary events).

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Alex brough a cell phone for $200 using money from his saving account he is replacing the money in his saving account at he rate of $8 per weeks he already has replaced $80 how many more weeks does alex will he have to put money in his saving account in order to replace the entire amount

Answers

Alex will have to put money in his savings account for 15 more weeks at a rate of $8 per week.

How to maintain budget on purchasing cell phone?

Alex purchased a cell phone for $200 using money from his savings account. He plans to replace the money in his savings account at the rate of $8 per week. He has already replaced $80, which means he needs to replace $120 more to have the entire amount. Since he is replacing the money at a rate of $8 per week, he will need 15 more weeks to replace the remaining amount. Therefore, he will have to put money in his savings account for 15 more weeks to replace the entire $200 he spent on the cell phone. By doing so, he will be able to maintain his savings and avoid any financial loss.

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Beckett asked his classmates, "How many days do you floss your teeth


typical week?" The table shows Beckett's data.


Days of Flossing per Week


7


7


7


4


3


1


0


6


6


7


2.


6


5


3


N


4


How many observations did he record?


A. 20


B. 12


O c. 4


O D. 16

Answers

Answer: B

Step-by-step explanation: I did the quiz :p

Hope this helps

The correct answer is B. 12. There are 12 numbers in the table, which represents the number of observations Beckett recorded.

The table shows the number of days each of Beckett's classmates floss their teeth in a typical week. The number of observations recorded is simply the number of classmates, or the number of entries in the table. In this case, there are 12 entries, so the answer is 12.

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Out of 300 people sampled, 33 received flu vaccinations this year. Based on this, construct a 95% confidence interval for the true population proportion of people who received flu vaccinations this year. Give your answers as decimals, to three places < p <

Answers

A 95% confidence interval for the true population proportion of people who received flu vaccinations this year is  0.067 < p < 0.133.

To construct a 95% confidence interval for the true population proportion of people who received flu vaccinations, we can use the formula:

CI = p ± z√((p(1-p))/n)

where:

CI is the confidence interval

p is the sample proportion (33/300 = 0.11)

z is the z-score associated with a 95% confidence level, which is approximately 1.96

n is the sample size (300)

Substituting the values, we get:

CI = 0.11 ± 1.96√((0.11(1-0.11))/300)

CI = 0.11 ± 0.043

CI = (0.067, 0.133)

Therefore, the 95% confidence interval for the true population proportion of people who received flu vaccinations is 0.067 < p < 0.133.

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Whats 4x + 5 = 6 (x + 3) - 20 - 2x

Answers

To solve this equation, we first simplify both sides of the equation by using the distributive property to expand the right-hand side:

4x + 5 = 6(x + 3) - 20 - 2x

4x + 5 = 6x + 18 - 20 - 2x

Next, we can combine like terms on the right-hand side:

4x + 5 = 4x - 2

Now, we can subtract 4x from both sides to isolate the variable on one side of the equation:

4x - 4x + 5 = 4x - 4x - 2

5 = -2

This is a contradiction since 5 cannot be equal to -2. Therefore, there is no solution to this equation.

In other words, the equation is inconsistent and there is no value of x that can make it true.

assume the data are three independent srss, one from each of the four populations of caffeine levels, and that the distribution of the yields is normal. a partial anova table produced by minitab follows, along with the means and standard deviation of the yields for the four groups. one-way anova: rest versus caffeine the null hypothesis for the anova f test is that group of answer choices the population mean minutes of sleep is the same for all four levels of caffeine. the population mean minutes of sleep is increasing as the caffeine level gets larger. the population mean minutes of sleep is decreasing as the caffeine level gets larger. the population mean minutes of sleep is largest for the high level of caffeine.

Answers

The statistics indicate that the assumption that the four populations have the same standard deviation has been broken.

a. This research was done via observation.

False, as this is a test. (unlike what Alex89 says). The response variable (minutes of rest) is then recorded because the researcher randomly assigns the fruit flies to one of the treatments, using a TREATMENT, and records the response variable.

b. The statistics indicate that the assumption that the four populations have the same standard deviation has been broken.

False: There is no deviation from the equality of standard deviations. We DO NOT need to test this assumption when the sample sizes are equal. Even if we did, 29.61/19.08 = 1.55 2 means that the greatest standard deviation is less than twice the lowest standard deviation. We are therefore okay.

c. Because ANOVA needs sample sizes, it may be applied to this data are equal.

False - The ANOVA does NOT require equal sample sizes.

3. The correct option is D, For this example, we notice that 3) None of the above

(4) The correct is option A, which states that 4) the population mean rest is the same for all four caffeine concentrations.

Statistics provides a framework for making informed decisions based on data by using methods such as probability theory, hypothesis testing, regression analysis, and statistical modeling. The importance of statistics lies in its ability to transform raw data into meaningful information that can be used to make decisions, develop policies, and solve problems in a wide range of fields, including business, healthcare, government, and social sciences.

Statisticians use various tools and techniques to summarize and describe data, identify patterns and relationships, and make predictions and inferences. They also play a critical role in designing experiments, surveys, and observational studies, ensuring that they are statistically sound and produce reliable results.

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Complete Question:-

An experiment to help determine if insects sleep gave caffeine to fruit flies to see if it affected their rest. The three treatments were a control, a low caffeine dose of 1 mg/ml of blood, a medium dose of 3 mg/ml of blood, and a higher caffeine dose of 5 mg/ml of blood. Twelve fruit flies were assigned at random to the four treatments, three to each treatment, and the minutes of rest measured over a 24-hour period was recorded. The data follow.

Treatment Minutes of rest

Control 450 413 418

Low dose 466 422 435

Medium dose 421 453 419

High dose 364 330 389

Assume the data are three independent SRSs, one from each of the four populations of caffeine levels, and that the distribution of the yields is Normal.

A partial ANOVA table produced by Minitab follows, along with the means and standard deviation of the yields for the four groups.

One-way ANOVA: Rest versus Caffeine

Source DF SS MS F P

Caffeine 11976

Error 538.75

Total

Level N Mean StDev

Control 3 427.00 20.07

Low 3 441.00 22.61

Medium 3 431.00 19.08

High 3 361.00 29.61

3. For this example, we notice that 3) __________

a. this is an observational study.

b. the data show evidence of a violation of the assumption that the four populations have the same standard deviation.

c. ANOVA can be used on these data because ANOVA requires the sample sizes are equal.

d. None of the above

4. The null hypothesis for the ANOVA F test is that 4) __________

a. the population mean rest is the same for all four levels of caffeine.

b. the population mean rest is increasing as the caffeine level gets larger.

c. the population mean rest is decreasing as the caffeine level gets larger.

d. the population mean rest is largest for the high level of caffeine.

How did new leaders gain power in both Germany and Japan after World War I?John threw the Javelin 106 feet in his last track meet. The average throw was 130 ft. The standard deviation was 8 feet. How many standard deviations below the mean did John throw?

Answers

John threw the javelin 3 standard deviations below the mean

What is an equation?

An equation is an expression that shows how numbers and variables using mathematical operators.

The z score shows by how many standard deviations the raw score is above or below the mean. It is given by:

z = (raw score - mean) / standard deviation

Given that John threw 106 feet. The average throw was 130 ft. The standard deviation was 8 feet. Hence:

z = (106 - 130) / 8

z = -3

John threw 3 standard deviations below the mean

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5.
Sarah deposited $800 in an account that earns
2% interest compounded annually. Claire deposited
$800 in an account that earns 2% simple interest.
How much will each girl have in their account at the
end of 8 years if they do not make any deposits or
withdrawals?

Answers

Answer:

Sarah will have $937.28 and Claire will have $928.

Step-by-step explanation:

All my work is provided in the screenshots that are attached to my answer! Drop questions in the comments and I'll try to respond if I remember/see them lol.

Have a great day!

I’m having trouble with this

Answers

Fast answer:
(x, y, z) = (3, 2, 1)
*x = 3; y = 2; z = 1.

Check point:
2*3 - 2 + 3*1 = 7
3*3 + 2 - 1 = 10
5*3 - 2*1 = 13

7=7
10=10
13=13
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