The table shows the

average rainfall, in inches, in Miami for each

of the first six months of 2020. Write ordered

pairs for the data in the table

Answers

Answer 1

The ordered pairs for the data in the table include the following:

(1, 2.09)(2, 2.42)(3, 3.00)(4, 3.20)(5, 4.98)(6, 8.27)

What is an ordered pair?

In Mathematics and Geometry, an ordered pair is sometimes referred to as a coordinate and it can be defined as a pair of two (2) elements or data points that are commonly written in a fixed order within parentheses as (x, y), which represents the x-coordinate (abscissa) and the y-coordinate (ordinate) on the coordinate plane of any graph.

Based on the table shown in the image attached below, we can reasonably infer and logically deduce that all of the coordinate points or ordered pairs would be located in quadrant 1.

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

The Table Shows Theaverage Rainfall, In Inches, In Miami For Eachof The First Six Months Of 2020. Write

Related Questions

A triangle has side lengths of (7m – 2) centimeters, (9m - 5) centimeters, and
(6n – 1) centimeters. which expression represents the perimeter, in centimeters, of
the triangle?

Answers

The expression that represents the perimeter, in centimeters, of the triangle is (7m - 2) + (9m - 5) + (6n - 1).

How to find the perimeter of a triangle?

The perimeter of a triangle is the sum of the lengths of its sides. Therefore, to find the perimeter of the triangle with side lengths (7m - 2) cm, (9m - 5) cm, and (6n - 1) cm, we need to add these lengths together.

Thus, the expression that represents the perimeter of the triangle is (7m - 2) cm + (9m - 5) cm + (6n - 1) cm.

Simplifying this expression, we get 16m + 6n - 8 cm, which is the final answer. Therefore, the perimeter of the triangle is 16m + 6n - 8 cm.

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David is setting up camp with his friend Xavier. David and Xavier want to place their tents equal distance to the ranch where the mess hall is. A model is shown, where points D and X represent the location
tents and point R represents the ranch. DR = (12.3z + 12.4) meters (m) and XR= (10.5z+34) m.
D
X
R
What is the distance Xavier and David are from the ranch?

Answers

The distance from Xavier and David to the ranch can be found using the distance formula:

distance = sqrt((change in x)^2 + (change in y)^2 + (change in z)^2)

In this case, we are given the distances DR and XR, which represent the change in x, y, and z coordinates between the tents and the ranch. We know that the tents are located at equal distances from the ranch, so the change in x, y, and z coordinates for both David and Xavier will be the same.

Let's call the distance from each tent to the ranch "d", then we have:

DR = XR = d

Substituting the given values, we get:

12.3z + 12.4 = 10.5z + 34

Solving for z, we get:

z = 6.8

Now we can find the distance from each tent to the ranch using the formula:

distance = sqrt((change in x)^2 + (change in y)^2 + (change in z)^2)

For David's tent:

distance = sqrt((12.3z)^2 + 0^2 + (12.4)^2) = sqrt((12.3*6.8)^2 + (12.4)^2) = 87.9 meters (rounded to one decimal place)

For Xavier's tent:

distance = sqrt((10.5z)^2 + 0^2 + (34)^2) = sqrt((10.5*6.8)^2 + (34)^2) = 95.6 meters (rounded to one decimal place)

Therefore, David and Xavier are 87.9 meters and 95.6 meters away from the ranch, respectively.

Evaluate the integral 4 cos x2 dx dy dz, 2y by changing the order of integration in an appropriate way. CILLS

Answers

To evaluate the integral 4 cos x^2 dx dy dz, 2y by changing the order of integration, we first need to determine the limits of integration.

Integrating with respect to x first, we have:
∫∫∫ 4 cos x^2 dx dy dz, 2y
= ∫∫ [2 sin x^2]y=0 to y dz, 2y
= ∫ [2 sin x^2]z=0 to z dz, 2y
= 2y ∫ [sin x^2]z=0 to z dz

Next, integrating with respect to z, we have:
2y ∫ [sin x^2]z=0 to z dz
= 2y [cos x^2]z=0 to z
= 2y [cos z^2 - 1]
Finally, integrating with respect to y, we have:

∫∫∫ 4 cos x^2 dx dy dz, 2y
= ∫∫ 2y [cos z^2 - 1] dy dz
= ∫ [y^2(cos z^2 - 1)]z=0 to z dz
= ∫ y^2(cos z^2 - 1) dz
Therefore, we have changed the order of integration from dx dy dz, 2y to dz dy dx, and the new limits of integration are:
0 ≤ z ≤ √(π/2)
0 ≤ y ≤ √(π/2 - z^2)
0 ≤ x ≤ √(π/2 - y^2 - z^2)


We can now evaluate the integral using these new limits and the equation we derived earlier:
∫∫∫ 4 cos x^2 dx dy dz, 2y
= ∫∫∫ 4 cos x^2 dz dy dx, 2y
= ∫ from 0 to √(π/2) ∫ from 0 to √(π/2 - z^2) ∫ from 0 to √(π/2 - y^2 - z^2) y^2(cos z^2 - 1) dx dy dz
= -4/3π
Therefore, the value of the integral is -4/3π.
To evaluate the integral by changing the order of integration, first, we need to rewrite the given integral in the correct notation. Unfortunately, the provided integral seems to have some errors or missing information, making it difficult to give a complete answer.

Please provide the correct integral and the limits of integration for each variable (x, y, and z) so I can assist you better.

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The figure below is not drawn to scale. The height of the triangle ABC is 2 cm shorter than its base. Find the area of the shaded portions

Answers

The area of the shaded portion in the given triangle of the attached diagram with given measurements is equal to 30 square centimeters.

In triangle ABC ,

Base 'AB' = 3+ 6 + 3

                = 12cm

In the attached figure.

Let the perpendicular line passing through C intersect on AB at point D.

Height of the triangle ABC  'CD' = 12 -2

                                                     = 10 cm

Area of triangle ABC = ( 1/2) × AB × CD

                                   = ( 1/ 2) × 12 × 10

                                   = 60 cm²

Area of triangle excluding shaded portion = ( 1/2 ) × 6 × 10

                                                                       = 30cm²

Area of the shaded portion

= Area of triangle ABC - Area of triangle excluding shaded portion

= 60 - 30

= 30 square centimeters.

Therefore, the area of the shaded portion of the triangle in the attached figure is equal to 30 square centimeters.

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The above question is incomplete, the complete question is:

The figure below is not drawn to scale. The height of the triangle ABC is 2 cm shorter than its base. Find the area of the shaded portions.

Attached figure.

A random sample of 18 observations taken from a normally distributed population produced the following data:



28. 4 27. 3 25. 5 25. 5 31. 1 23. 0 26. 3 24. 6 28. 4


37. 2 23. 9 28. 7 27. 9 25. 1 27. 2 25. 3 22. 6 22. 7


What is the point estimate of μ?


Make a 99% confidence interval for μ.


What is the margin of error of estimate for μ in part b?

Answers

Point estimate of μ  [tex]26.15[/tex]

99% confidence interval: [tex](24.213, 28.087)[/tex]

Margin of error:[tex]1.437[/tex]

How to estimate μ and create a 99% confidence interval ?

The point estimate of  (population mean) is calculated by finding the sample mean , which is the average of the given sample data. Adding up all the observations and dividing by the sample size (18), we get:

To make a 99% confidence interval for we can use the t-distribution and the sample mean. Since the sample size is 18, we have (18 - 1) = 17 degrees of freedom. Using a t-distribution table or a calculator, we find the critical value for a 99% confidence level and 17 degrees of freedom to be approximately 2.898.

Next, we calculate the standard error (SE) using the sample standard deviation (s) divided by the square root of the sample size .Assuming the population standard deviation is unknown, we estimate it using the sample standard deviation, which is approximately 3.858.

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u = 28.8

The 99% confidence interval for μ is (27.01, 30.59).

How to solve the data

28.4 + 27.3 + 25.5 + 25.5 + 31.1 + 23.0 + 26.3 + 24.6 + 28.4 + 37.2 + 23.9 + 28.7 + 27.9 + 25.1 + 27.2 + 25.3 + 22.6 + 22.7 = 518.3

The sample mean (or the point estimate of μ) is:

518.3 / 18 = 28.8

Calculate each data point's deviation from the mean, square it, and then sum up these values.

(28.4-28.8)² + (27.3-28.8)² + (25.5-28.8)² + (25.5-28.8)² + (31.1-28.8)² + (23.0-28.8)² + (26.3-28.8)² + (24.6-28.8)² + (28.4-28.8)² + (37.2-28.8)² + (23.9-28.8)² + (28.7-28.8)² + (27.9-28.8)² + (25.1-28.8)² + (27.2-28.8)² + (25.3-28.8)² + (22.6-28.8)² + (22.7-28.8)²

= 116.4

Divide by (n - 1), where n is the number of observations. In this case, n = 18, so n - 1 = 17.

So, the variance (s²) is 116.4 / 17 = 6.85 (approximately)

s = √6.85 = 2.62

CI = x ± (t * (s/√n))

CI = 28.8 ± (2.898 * (2.62/√18))

CI = 28.8 ± 1.79

So, the 99% confidence interval for μ is (27.01, 30.59).

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"Reduce the quadratic form 2yz^2+2xz+2xy to canonical form by an
orthogonal transformation and also find rank, index and
signature."

Answers

To reduce the quadratic form 2yz^2+2xz+2xy to canonical form, we need to complete the square.

First, we factor out the coefficient of z^2 from the yz^2 term:

2yz^2 = 2z(yz)

Next, we add and subtract the square of half the coefficient of z from the resulting expression:

2z(yz + (x/y)^2 - (x/y)^2)

= 2z((y + x/y)^2/4 - (x/y)^2)

= z(y + x/y)^2/2 - zx^2/y

Now, we can see that the quadratic form can be written in the canonical form:

q(x,y,z) = (y + x/y)^2/2 - x^2/y

To find the rank, we need to count the number of non-zero eigenvalues. In this case, we have two non-zero eigenvalues, so the rank is 2.

To find the index, we need to count the number of positive, negative, and zero eigenvalues. We can see that there is one positive eigenvalue and one negative eigenvalue, so the index is 1.

Finally, to find the signature, we subtract the index from the rank. In this case, the signature is 1.
To reduce the quadratic form 2yz^2 + 2xz + 2xy to canonical form by an orthogonal transformation, we first find the matrix representation of the form. The given quadratic form can be written as Q = [x, y, z] * A * [x, y, z]^T, where A is a symmetric matrix:

A = | 0  1  1 |
    | 1  0  1 |
    | 1  1  2 |

Now, we find the eigenvalues and eigenvectors of A. The eigenvalues are λ₁ = 3, λ₂ = -1, and λ₃ = 0, with corresponding eigenvectors:

v₁ = [1, 1, 1]
v₂ = [-1, 1, 0]
v₃ = [-1, -1, 2]

Normalize the eigenvectors to form an orthogonal matrix P:

P = |  1/√3   1/√2  -1/√6 |
    |  1/√3  -1/√2  -1/√6 |
    |  1/√3    0    2/√6 |

Now, we can transform A to its canonical form using the orthogonal matrix P:

D = P^T * A * P
D = | 3  0  0 |
    | 0 -1  0 |
    | 0  0  0 |

So, the canonical form of the quadratic form is:

Q canonical = 3x'^2 - y'^2

The rank of the quadratic form is the number of non-zero eigenvalues in the diagonal matrix D. In this case, the rank is 2.

The index of the quadratic form is the number of positive eigenvalues in D, which is 1 in this case.

The signature of the quadratic form is the difference between the number of positive and negative eigenvalues in D. In this case, the signature is 1 - 1 = 0.

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Your friend purchased a medium pizza for 10. 32 with a 30% off coupon what is the price of the pizza with out a coupon

Answers

The price of the medium pizza without the coupon is approximately $14.74.

To find the original price of the pizza without the coupon, we can use the following formula:

Original Price = Discounted Price / (1 - Discount Percentage)

In this case, the discounted price is $10.32 and the discount percentage is 30% or 0.3. Plugging the values into the formula:

Original Price = $10.32 / (1 - 0.3)

Original Price = $10.32 / 0.7

Original Price ≈ $14.74

So, the price of the medium pizza without the coupon is approximately $14.74.

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Work out without a calculator.

45
×

1
20

Answers

Answer:

3

10

5

Step-by-step explanation:

if you pay $ for a 20-year zero coupon bond with a face value of $, what is your annual compound rate of return?

Answers

The annual compound rate of return on this 20-year zero coupon bond is 6%. To calculate the annual compound rate of return, we need to use the following formula:

Annual Compound Rate of Return = (Face Value / Purchase Price)^(1/Number of Years) - 1

Here, the face value of the bond is $1000, the purchase price is $500, and the bond has a term of 20 years. Substituting these values in the above formula, we get:

Annual Compound Rate of Return = (1000/500)^(1/20) - 1

Simplifying this expression, we get:

Annual Compound Rate of Return = 1.06 - 1

Annual Compound Rate of Return = 0.06 or 6%

Therefore, the annual compound rate of return on this 20-year zero coupon bond is 6%.

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A normal distribution curve, where x = 70 and o = 15,
was created by a teacher using her students' grades.
What information about their performances can be obtained by analyzing the curve?

Answers

The normal distribution curve gives useful information regarding the distribution of students' grades, such as the average grade, the dispersion of grades, the likelihood of receiving a specific grade, and the presence of any outliers.

Obtainable Information's from the Distribution Curve?

The normal distribution curve generated by the educator offers multiple insights into the distribution of academic achievement among her pupils. The analysis of the curve yields various informative data such as:

The parameter of central tendency for this distribution is represented by the mean, denoted as x=70, signifying that the students' mean grade is at 70.The normal distribution's degree of dispersion is represented by the standard deviation, denoted by o=15 in this context, conveying the extent of variability among grades. In this particular instance, the presence of a higher standard deviation denotes a greater degree of variability in the distribution of grades from the central tendency.Probability theory allows for the utilization of the normal distribution curve to determine the likelihood of a student achieving a particular grade. An illustration of this notion can be depicted by estimating the likelihood of an individual receiving a marks within the range of 55 and 85 through the computation of the region beneath the curve that occupies those particular values.The utilization of the normal distribution in statistical analysis is instrumental in recognizing any possible outliers within the dataset. An outlier refers to a data point that deviates considerably from the rest of the data. In the present scenario, grades whose values extend beyond two standard deviations from the mean, calculated as 70 + 215 = 100 or 70 - 215 = 40, may be considered as outliers.

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Given square ertn, what is the length of nt?

Answers

In the given square ERTN, the length of the side NT is found to be equal to 25.

The square ERTN has ER = 5x and RT = 10x - 25. Because it is a square, the sides will be equal in magnitude. So, we can write,

Length of ER = Length of RT

5x = 10x - 25

5x = 25

x = 25/5

x = 5

So, the length of ER will be 5(5) = 25 and the length of RT will be 10(5)-25 = 25.

So, finally the length of NT would also be equal to 25.

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2 Decide if each statement about r = 6 is true or false. Choose True or False for each statement. a. The equation has the same solution as fr = 3. True False​

Answers

Answer:

Step-by-step explanation:

True

A group of workers takes 4 1/2 days to plant 5 1/4 acres. What is the unit rate in acres per day?


Write your answer as a fraction or a mixed number in simplest form. Answer would be: 1 1/6

Answers

The unit rate for planting is 1 1/6 acres per day.

To find the unit rate, we need to divide the total area planted by the number of days taken to plant it. We can convert the mixed number of days to an improper fraction by multiplying the whole number by the denominator and adding the numerator.

Therefore, 4 1/2 days can be converted to 9/2 days.

Now we can divide the total area of 5 1/4 acres by the number of days it took to plant it, which is 9/2 days. To divide fractions, we invert the second fraction and multiply, so:

5 1/4 ÷ 9/2 = 21/4 ÷ 9/2 = 21/4 x 2/9 = 42/36

We can simplify 42/36 by dividing both the numerator and denominator by their greatest common factor, which is 6.

42/36 = 7/6

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The vector

u

u has magnitude

2

2 and direction

5

5

∘. 55

∘. If vector

v

=



2

u

,

v=−2u, then what is the magnitude and direction of vector

v

?

v? Write your direction in degrees in the interval

0





θ

<

36

0

∘. 0



≤θ<

Answers

The magnitude of vector v is 4 and the direction is 125 degrees.

Given that vector u has a magnitude of 2 and a direction of 55 degrees, we can determine the magnitude and direction of vector v.

To find the magnitude of vector v, we can use the equation:

|v| = |-2u|

Since u has a magnitude of 2, we can substitute it into the equation:

|v| = |-2 * 2|

|v| = |-4|

|v| = 4

The magnitude of vector v is 4.

To find the direction of vector v, we can note that multiplying a vector by -1 (in this case, multiplying u by -2) reverses its direction. So the direction of v is the exact opposite of the direction of u.

Since the direction of u is 55 degrees, the direction of v is 55 degrees in the opposite direction. In the interval of 0 degrees ≤ θ < 360 degrees, the direction of v can be expressed as:

θ = 180 - 55

θ = 125 degrees

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An aquarium at a zoo is shaped like a cylinder. it has a height of 5 ft and a base radius of 3.5 ft. its being filled with water at a rate of 12 gallons per min. if one cubic foot is about 7.5 gallons, how long will it take to fill

Answers

It will take approximately 2 hours and 3 minutes to fill the aquarium.

How to adjust journal entries for partnership?

The aquarium at the zoo is in the shape of a cylinder with a height of 5 feet and a base radius of 3.5 feet.

To calculate the volume of the aquarium, we can use the formula for the volume of a cylinder, which is:

V = πr²h

Plugging in the given values we get:

V = π(3.5²)(5) = 192.5π cubic feet

Since one cubic foot is approximately 7.5 gallons, the aquarium has a volume of approximately 1443.75 gallons. If the aquarium is being filled at a rate of 12 gallons per minute, it will take approximately 120.3 minutes, or 2 hours and 3 minutes, to fill the aquarium.

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can someone help me answer #17 using square roots?

Answers

Answer:

13, 2x^2 - 98 = 0 ........ given

2x^2= 98 ........ take to tge left side no.98

x^2 = 98/2 = 49 ..... multiple both side by radical

x = √49 = 7 ........ simplify

17, 4x^2 + 10 = 11

4x^2 + 10 = 11 4x^2 = 11- 10 = 1

4x^2 + 10 = 11 4x^2 = 11- 10 = 1 x^2 = 1/4

4x^2 + 10 = 11 4x^2 = 11- 10 = 1 x^2 = 1/4 x = √1/4 = 1/2

A gardening club records the number of new plants each member planted in a

month. Create a histogram to show the data distribution for the number of new

plants. Show your work.

2

6

8

10

New Plants This Month
.

12
.

14

16

Answers

A histogram of the data distribution for the number of new plants is shown in the image below.

How to create a histogram to show the data distribution?

In this scenario and exercise, you are required to create a histogram to show the data distribution with respect to the number of new plants. First of all, we would determine the midpoint, absolute frequency, relative frequency, and cumulative frequency;

Midpoint                                      Absolute frequency      Rel. frequency

[0, 2] = (0 + 2)/2 = 1                        3 + 2 = 5                        0.128205

[2, 4] = (2 + 4)/2 = 3                        2 + 3 = 5                        0.128205

[4, 6] = (4 + 6)/2 = 5                        2 + 3 = 5                        0.128205

[6, 8] = (6 + 8)/2 = 7                                    2                        0.051282

[8, 10] = (8 + 10)/2 = 9                     3 + 4 = 7                        0.179487

[10, 12] = (10 + 12)/2 = 11                  4 + 3 = 7                        0.179487

[12, 14] = (12 + 14)/2 = 13                  1 + 2 = 3                        0.076923

[14, 16] = (14 + 16)/2 = 15                  3 + 2 = 5                        0.128205

Mathematically, the relative frequency of a data set can be calculated by using this formula:

Relative frequency = absolute frequency/total frequency × 100

Relative frequency = 5/39 × 100 = 0.128205

For the cumulative frequency, we have:

0.128205

0.128205 + 0.128205 = 0.25641

0.25641 + 0.128205 = 0.384615

0.384615 + 0.051282 = 0.435897

0.435897 + 0.179487 = 0.615385

0.615385 + 0.179487 = 0.794872

0.794872 + 0.076923 = 0.871795

0.871795 + 0.128205 = 1

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

A spring gun at ground level fires a golf ball at an angle of 45 degrees. The ball lands 10 m away.
a) What was the ball's initial speed?
b) For the same initial speed, find the two firing angles that make the range 6 m.
Recall that the Ideal Projectile Motion Equation is
r=(vo*cos(theta))ti+((vo*sin(theta)t-1/2*g*t^2)j.
Answer: a) vo=sqrt(10g)
b) theta=1/2*arcsin(3/5),
theta=pi-1/2*arcsin(3/5).
And is arcsin the same thing as sin^-1?

Answers

Yes, arcsin and sin^-1 both represent the inverse sine function.


process of finding inital speed:


a) To find the ball's initial speed, we can use the range formula for projectile motion:
R = (v₀² * sin(2θ)) / g


where R is the range (10 m),

v₀ is the initial speed,

θ is the launch angle (45 degrees), and

g is the acceleration due to gravity (9.81 m/s²).

We can solve for v₀:

10 = (v₀² * sin(90)) / 9.81
10 = (v₀²) / 9.81
v₀² = 10 * 9.81
v₀ = sqrt(10 * 9.81)

The ball's initial speed is sqrt(10 * 9.81) m/s.

b) For the same initial speed, we can find the two firing angles that make the range 6 m:

6 = (v₀² * sin(2θ)) / 9.81
Now, we can use the initial speed found in part (a):

6 = (10 * 9.81 * sin(2θ)) / 9.81
0.6 = sin(2θ)

To find the two angles, we can use the arcsin function:

θ₁ = 1/2 * arcsin(0.6)
θ₂ = π - 1/2 * arcsin(0.6)

The two firing angles are 1/2 * arcsin(0.6) and π - 1/2 * arcsin(0.6).Yes, arcsin is the same as sin^(-1);

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Suppose you have a bag of m&ms 4 green 6 yellow 7 purple 3 red. what is the probability you select a brown m&m

Answers

The probability of selecting a brown M&M from this bag is 0.


Since there are no brown M&Ms mentioned in your bag, the probability of selecting a brown M&M is 0. In probability terms, we can express this as:

Probability of selecting a brown M&M = Number of brown M&Ms / Total number of M&Ms

There are 0 brown M&Ms, and there are a total of 4 green + 6 yellow + 7 purple + 3 red = 20 M&Ms in the bag. So the probability is:

Probability = 0 / 20 = 0

Thus, the probability of selecting a brown M&M from this bag is 0, meaning it's impossible with the given information.

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1. write the equation for each line that passes through (1, 2) and has a) slope 2/3 b) undefined slope c) m = 0 d) point (2, 3) also on the line​

Answers

The equation of the line that passes through (1, 2) and (a) having a slope of 2/3 is y = (2/3)x + 4/3, (b) Having an undefined slope is x = 1, (c) having slope m = 0 is y = 2 (d) point (2, 3) also lies on the line is y = x + 1.

a) To find the equation of a line with slope 2/3 passing through (1,2), we can use the point-slope formula:
y - y1 = m(x - x1)
Substituting in the values we know, we get:
y - 2 = (2/3)(x - 1)
Expanding and simplifying:
y = (2/3)x + 4/3
So the equation of the line is y = (2/3)x + 4/3.

b) To find the equation of a line with an undefined slope passing through (1,2), we know that this line must be vertical. The equation of a vertical line passing through (1,2) can be written as:
x = 1

So the equation of the line is x = 1.

c) To find the equation of a line with slope m=0 passing through (1,2), we know that this line must be horizontal. The equation of a horizontal line passing through (1,2) can be written as:
y = 2
So the equation of the line is y = 2.

d) To find the equation of a line passing through (1,2) and (2,3), we can use the point-slope formula again:
y - y1 = m(x - x1)
Substituting in the values we know, we get:
y - 2 = (3 - 2)/(2 - 1)(x - 1)
Simplifying:
y - 2 = 1(x - 1)
y - 2 = x - 1
y = x + 1
So the equation of the line is y = x + 1.

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The height of a right rectangular pyramid is equal to x units. The length and width of the base are units and units. What is an algebraic expression for the volume of the pyramid?

Answers

The algebraic expression for the volume of the right rectangular pyramid is (x/3) × (units²).

The volume of a right rectangular pyramid is given by the formula;

V = (1/3) × base_area × height

where base_area is area of the base of the pyramid.

In this case, the length and width of the base are given as units and units, respectively. Therefore, the area of the base is;

base_area = length × width

Substituting the given values, we get;

base_area = units × units = units²

The height of the pyramid is given as x units. Therefore, the volume of the pyramid can be expressed as;

V = (1/3) × (units²) × x

Simplifying the expression, we get;

V = (x/3) × (units²)

Therefore, the algebraic expression for the volume of pyramid is (x/3) × (units²).

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Need help on question b- the question is attached in the photo.

Answers

The height of the new player is given as follows:

210 cm.

How to calculate the mean of a data-set?

The mean of a data-set is given by the sum of all observations in the data-set divided by the number of observations, which is also called the cardinality of the data-set.

Considering the frequencies and the height of the new player of x, the sum of the observations is given as follows:

198 x 1 + 199 x 3 + 200 x 2 + 201 x 5 + 202 x 2 + x = 2604 + x.

The total number of players, considering the new player, is given as follows:

1 + 3 + 2 + 5 + 2 + 1 = 14.

The mean is of 201 cm, hence the height of the new player is obtained as follows:

(2604 + x)/14 = 201

2604 + x = 14 x 201

x = 14 x 201 - 2604

x = 210 cm.

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A team of scientists surveyed the trews in a national forest. the scientists counted 3,160 evergreen trees and 840 deciduous trees. what percentage of the trees were evergreen?

Answers

The percentage of evergreen trees from the total combination of trees is 79%

The percentage of evergreen trees will be calculated using the formula -

Percentage of evergreen trees = number of evergreen trees/total number of trees × 100

Total number of trees = number of evergreen + deciduous trees

Total trees = 3160 + 840

Total trees = 4000

Percentage of evergreen trees = 3160/4000 × 100

Cancelled common zeroes in numerator and denominator and performing division

Percentage = 79%

Hence, the percentage of evergreen trees is 79%.

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A sphere has a radius of 12 cm. a cylinder has the same radius and has a height of 12 cm. what is the difference in their volumes in cubic cm? record your answer to the nearest hundredth. use 3.14

Answers

The difference in volumes between the sphere and the cylinder is approximately 3619.14 cubic cm.

We need to find the difference in volumes between a sphere and a cylinder with the same radius (12 cm) and the cylinder has a height of 12 cm.

Step 1: Find the volume of the sphere.
The formula for the volume of a sphere is V_sphere = (4/3)πr³.
V_sphere = (4/3) × 3.14 × (12 cm)³
V_sphere = (4/3) × 3.14 × 1728 cm³
V_sphere ≈ 9047.78 cm³

Step 2: Find the volume of the cylinder.
The formula for the volume of a cylinder is V_cylinder = πr²h.
V_cylinder = 3.14 × (12 cm)² × 12 cm
V_cylinder = 3.14 × 144 cm² × 12 cm
V_cylinder ≈ 5428.64 cm³

Step 3: Find the difference in volumes.
Difference = V_sphere - V_cylinder
Difference = 9047.78 cm³ - 5428.64 cm³
Difference ≈ 3619.14 cm³

The difference in volumes between the sphere and the cylinder is approximately 3619.14 cubic cm.

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the figure above, AB is parallel to DE; (ABC = 800 and (CDE = 280. Find (DCB.(3mks)

Answers

Answer:

Step-by-step explanation:

Since AB is parallel to DE, we know that:

(ABC + BCD) = (CDE + EDC)

Substituting the given values, we get:

800 + BCD = 280 + EDC

Simplifying, we get:

BCD = EDC - 520

We also know that:

(BCD + CDE + DCE) = 180

Substituting BCD = EDC - 520 and CDE = 280, we get:

(EDC - 520 + 280 + DCE) = 180

Simplifying, we get:

EDC + DCE - 240 = 0

EDC + DCE = 240

Now we can solve for DCE in terms of BCD:

DCE = 240 - EDC

DCE = 240 - (BCD + 520)

DCE = 760 - BCD

Substituting this expression for DCE into the equation (BCD + CDE + DCE) = 180, we get:

BCD + 280 + (760 - BCD) = 180

Simplifying, we get:

1040 - BCD = 180

BCD = 860

Therefore, (DCB) = 180 - (BCD + CDE) = 180 - (860 + 280) = -960. However, since angles cannot be negative, we can add 360 degrees to this value to get:

(DCB) = -960 + 360 = -600

Therefore, (DCB) = -600 degrees.

What is 7-12 problems. The image is attached.

Answers

The number of bases, faces, edges and vertices are;

7. 2, 4, 6, 6

8. 6, 5, 10, 10

9. 1, 4, 5, 5

10. 1, 5, 7 , 7

11. 1, 5, 7, 7

12. 1, 3, 4 , 4

How to determine the number

To determine the number, we need to take the following into considerations;

An edge is  a line segment that is between faces. Vertices are angular corners where two lines or edges and more meet between faces.A face is any of the sole flat surfaces of a solid objectBase is the surface the shape stands on

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A prospector graphed the locations of gold vein and all of the gold dust strikes in the vicinity. She positioned the gold vein at (-3,9) and the farthest gold dust strikes at (33,9). If each unit on the graph represents 1 mile then how far away from the gold vein is the farthest gold dust strike?

Answers

Answer:

Step-by-step explanation:

The gold vein is at (-3,9) and the farthest gold dust strike is at (33,9). The distance between the two points is 36 miles.

helpppp me please……….

Answers

Answer:

45°

Step-by-step explanation:

sin∠U = 5√2 / 10 = √2/2

m∠U = sin⁻¹(√2/2) = 45°

You can only make four different cuboids with 12 cubes complete the table to show the dimensions

Answers

Each cuboid has a total of 12 cubes, but they have different shapes and sizes. The table is attached below.

What is the cube?

A cube is a three-dimensional geometric shape that has six equal square faces, 12 equal edges, and eight vertices (corners). All the angles between the faces and edges of a cube are right angles (90 degrees), and all the edges are of equal length. A cube is a special type of rectangular prism where all the sides are equal in length, making it a regular polyhedron.

Sure, here's a table showing the possible dimensions of the four different cuboids that can be made with 12 cubes:

Cuboid Length Width Height

A                1       2 6

B                1       3 4

C                2       2 3

D                1        1 12

Note that the dimensions are given in terms of the number of cubes in each direction. For example, cuboid A has a length of 1 cube, a width of 2 cubes, and a height of 6 cubes.

Therefore, Each cuboid has a total of 12 cubes, but they have different shapes and sizes.

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An exclusive Yoghurt manufacturer sells 4,000 gallons per month at a price of GHS 40 each. When the price is reduced to GHS 30 sales increase to 6,000 gallons per month.


a. Calculate the price elasticity of demand for the Yoghurts over this price range.


b. Is demand elastic, unit elastic or inelastic?


c. Calculate the change in revenue due to the change in price

Answers

a. The price elasticity of demand for the Yoghurts over this price range is -2.5

b.  The demand is elastic

c. The change in revenue due to the change in price is GHS 20,000

a. The price elasticity of demand is given by the formula:

Price elasticity of demand = (Percentage change in quantity demanded) / (Percentage change in price)

The percentage change in quantity demanded is (6000 - 4000) / 4000 * 100% = 50%

The percentage change in price is (30 - 40) / 40 * 100% = -20%

Therefore, the price elasticity of demand = 50% / (-20%) = -2.5

b. Since the price elasticity of demand is greater than 1,-2.5. This means that the percentage change in quantity demanded is greater than the percentage change in price.

c. The revenue is given by the formula:

Revenue = Price x Quantity

At a price of GHS 40, the revenue is 4000 x 40 = GHS 160,000

At a price of GHS 30, the revenue is 6000 x 30 = GHS 180,000

Therefore, the change in revenue is GHS 20,000, which is an increase of 12.5%.

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