Need help please help me

Answer:

Here ya go :)

Step-by-step explanation:

Hope this helps!

Have a nice day <3

Answer:

The quadrilateral ABCD is a square.

Step-by-step explanation:

According to the statement, AB, BC, CD and DA are the sides of the quadrilateral, whereas DB and AC are its diagonals. If we know that [tex]x = 7[/tex], [tex]AB = 4\cdot x - 2[/tex], [tex]BC = 2\cdot x + 12[/tex], [tex]DC = 3\cdot x +5[/tex], [tex]AD = 6\cdot x -16[/tex], [tex]AC = 4\cdot x + 12[/tex] and [tex]DB = 8\cdot x -10[/tex], the lengths of each line segment are respectively:

Sides

[tex]AB = 4\cdot (7) -2[/tex]

[tex]AB = 26[/tex]

[tex]BC = 2\cdot (7) +12[/tex]

[tex]BC = 26[/tex]

[tex]DC = 3\cdot (7) +5[/tex]

[tex]DC = 26[/tex]

[tex]AD = 6\cdot (7) -16[/tex]

[tex]AD = 26[/tex]

Diagonals

[tex]AC = 4\cdot (7) +12[/tex]

[tex]AC = 40[/tex]

[tex]DB = 8\cdot (7) - 10[/tex]

[tex]DB = 40[/tex]

This information indicates that this quadrilateral is a square because of these characteristics:

1) All sides have the same length.

2) The ratio of any diagonal to any side is [tex]\sqrt{2}[/tex].

Answer:I hink its B if its not im sorry

Step-by-step explanation:

Answer:

sine 52 degrees = height / 78

height = 78 * sine 52

height = 78 * 0.78801

height = 61.46478 feet

rounded to nearest tenth 61.5 feet

Step-by-step explanation:

Answer:

I WRITE THE STEPS

Step-by-step explanation:

Find the Equation of a Line Given That You Know a Point on the Line And Its Slope. The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept. If you a point that a line passes through, and its slope, this page will show you how to find the equation of the line.

Answer:

Sum

Step-by-step explanation:

Remember that the plus sign (+) always means to add.

Answer:

It would be the sum of a number and eight.

9514 1404 393

Answer:

  659.52 cm^2

Step-by-step explanation:

In order to find the surface area of this figure, we need to know the dimensions of the base. If we assume the base is square, then the distance from its center to the center of one edge is half the dimension of one side of the base.

That center-to-edge distance (x) can be found from the given dimensions using the Pythagorean theorem.

  x^2 + (15.4 cm)^2 = (17 cm)^2

  x^2 = (289 -237.16) cm^2 = 51.84 cm^2

  x = √51.84 cm = 7.2 cm

This means the edge length of the prism base is 2×7.2 cm = 14.4 cm.

__

The total surface area of the square prism is ...

  A = b^2 +2bs . . . where b is the edge length of the base, s is the slant height

  A = (14.4 cm)^2 + 2(14.4 cm)(17 cm) = 659.52 cm^2

The total surface area of this square pyramid is 659.52 cm^2.

Answer:

A

Step-by-step explanation:

950 is 95% of 1000

so he lost 5 percent, which can be represented as -5.0%

Answer:

Step-by-step explanation:

because the value went down.. we know the the rate of return , is negative.  then we just have to think about , how much is 50 of 1000 ??  well 10 is 10% of 100 right?  so 100 is 10% or 1000,  right?  sooo  half of 100, or 50, is 5% of 1000,  

so -5% is the return on investment (roi)

Answer:

A. An angle is formed...

Answer:

An angle is formed where two rays meet at a common endpoint.

Step-by-step explanation:

Answer:

Slope, m = -12

Step-by-step explanation:

Given the following data;

Points on the x-axis (x1, x2) = (-2, -1)

Points on the y-axis (y1, y2) = (17, 5)

To find the slope, m;

Mathematically, slope is given by the formula;

[tex] Slope = \frac{Change \; in \; y \; axis}{Change \; in \; x \; axis} [/tex]

[tex] Slope, m = \frac {y_{2} - y_{1}}{x_{2} - x_{1}} [/tex]

Substituting into the equation, we have;

[tex] Slope, m = \frac {5 - 17}{-1 - (-2)} [/tex]

[tex] Slope, m = \frac {-12}{-1 + 2} [/tex]

[tex] Slope, m = \frac {-12}{1} [/tex]

Slope, m = -12

Answer:

1534

Step-by-step explanation:

34 35 baby you might need a seatbelet

Answer:

345 calories

Step-by-step explanation:

The easiest way to do this is to find out how many calories there are for 1 ounce. So 230 divided by 4, equals 57.5. So if 57.5 calories are in one ounce, then you just multiply by 6 to get your answer.

57.5 x 6 = 345 calories

Answer:

your mom and do it yourself iinstead of getting it online

Step-by-step explanation:

btw im Purp

Answer:

y=-5x+-3

Step-by-step explanation:

the slope is negative and its rise over run so 5/1 which is five and the y intercept is -3

Answer:

No

Step-by-step explanation:

Theirs always multiple ways to solve something, even if their is only one way to solve it. We all think things through differently

Answer:

96 [tex]in^2[/tex]

Step-by-step explanation:

48+12+36 (I divided it into 3 rectangles and added them up)

= 96 [tex]in^2[/tex]

Feel free to mark it as brainliest :D

Answer:commutative property

Step-by-step explanation:

Did it on edge

Answer:

a straight line i think is always 180 so i think the answer is A. 81

Step-by-step explanation:

Answer:

do you need the answer?

Step-by-step explanation:

?

Answer:

[tex]y=C_1e^{-x}+C_2xe^{-x}+\frac{1}{5}e^{2x}.[/tex]

Step-by-step explanation:

all the details see in the attached picture.

Answer:

24

Step-by-step explanation:

8 x 3 = 24

Answer:

18x+15

Step-by-step explanation:

This is basically asking you to simplify the expression.

5(4x+3)-2x

Distribute the 5

20x+15-2x

Combine like terms (x values)

18x+15

Answer:

3 ft = 36 in

8 yd = 24 ft

Step-by-step explanation:

1 ft = 12 in, 3 ft = 36 in

1 yd = 3 ft, 8 yd = 24 ft

Answer:

a square

Step-by-step explanation:

all the sides are either perpendicular or parallel

Answer:

[tex](a)\ H_a : d_1 - d_2 \ne 0[/tex]

[tex](b)\ H_0 : d_1 - d_2 = 0[/tex]

[tex](c)\ p\ value = 0.0216[/tex]

Step-by-step explanation:

Given

The above data

The question says 12 college students were sampled. However, data for 11 students were provided.

So, I will solve this question using 11 students i.e. n = 11

Solving (a): The alternative hypothesis

Let the relative dominance of the hypnotized students (condition 1) be [tex]d_1[/tex] and the relative dominance of the non-hypnotized students (condition 2) be [tex]d_2[/tex], respectively

The alternative hypothesis is the difference between these relative dominance not equal to 0.

So:

[tex]H_a : d_1 - d_2 \ne 0[/tex]

Solving (b): The null hypothesis

The null hypothesis is the difference between these relative dominance equal to 0.

Using the same notation as (a), the null hypothesis is:

[tex]H_0 = d_1 - d_2 = 0[/tex]

Solving (c): The p value

Using paired samples t test:

First, calculate the difference in scores

[tex]i.e.\ Condition\ 1 - Condition\ 2[/tex]

The difference (d) is as follows:

[tex]d: 14, 2, 4,2, 2, 15, 5, -5, 4, 2, 6[/tex]

Next, calculate the mean of the differences:

This is calculated as:

[tex]\mu = \frac{\sum x}{n}[/tex]

[tex]\mu = \frac{14+ 2+ 4+2+ 2+ 15+ 5 -5+ 4+ 2+ 6}{11}[/tex]

[tex]\mu = \frac{51}{11}[/tex]

[tex]\mu = 4.6364[/tex]

Next, calculate the standard difference of the differences.

This is calculated as:

[tex]\sigma = \sqrt{\frac{\sum(x - \mu)^2}{n-1}}[/tex]

So:

[tex]\sigma = \sqrt{\frac{(14 - 4.6364)^2+ (2- 4.6364)^2+ (4- 4.6364)^2+ ............ (6- 4.6364)^2}{11-1}}[/tex]

[tex]\sigma = \sqrt{\frac{318.54545456}{10}}[/tex]

[tex]\sigma = \sqrt{31.854545456}[/tex]

[tex]\sigma = 5.64398[/tex]  

Next, calculate the standard error of the mean difference.

This is calculated as:

[tex]SE = \frac{\sigma}{\sqrt{n}}[/tex]

[tex]SE = \frac{5.64398}{\sqrt{11}}[/tex]

[tex]SE = \frac{5.64398}{3.3166}[/tex]

[tex]SE = 1.70173[/tex]

Next, calculate the degree of freedom (df)

[tex]df = n -1[/tex]

[tex]df = 11 -1[/tex]

[tex]df = 10[/tex]

Lastly, calculate the test statistics (t)

This is calculated as:

[tex]t = \frac{\mu}{SE}[/tex]

[tex]t = \frac{4.6364}{1.70173}[/tex]

[tex]t = 2.72452[/tex]

[tex]t \approx 2.72[/tex]

From the t distribution table:

Where [tex]df = 10[/tex] and [tex]t = 2.72[/tex]

We have:

[tex]P(t > 2.72) = 0.0108[/tex]

For a two-tailed test, the p value is

[tex]p\ value = 2 * P(t > 2.72)[/tex]

[tex]p\ value = 2 * 0.0108[/tex]

[tex]p\ value = 0.0216[/tex]

Answer:

A

Step-by-step explanation:

area of the triangle is 5 x 2/ 2 which is 5

area of the square is 25

area of the semi circle is 1/2 * 3.14 * 2.5^2 which is 9.8125

9.8125. + 25 + 5 = 39.8125

9514 1404 393

Answer:

  12.  x = 5

  13.  -8, 0

  14.  6

Step-by-step explanation:

12. The area of a square with side length s is ...

  A = s²

The problem statement tells us the relationship between the areas is ...

  (x cm)² = (1/9)(15 cm)²

Taking the square root, we have ...

  x cm = (1/3)(15 cm)

  x cm = 5 cm . . . . . . . simplify

  x = 5

__

13. The rule is ...

  a[n] = (a[n-1] +8)/2 = (1/2)a[n-1] +4

For a[1] = -24, a[2] = (1/2)(-24) +4 = -8

For a[2] = -8, a[3] = (1/2)(-8) +4 = 0

The next two terms are -8 and 0.

__

14. The rule is ...

  a[n] = (a[n-1] -1)×5

Solving for the previous term, we find ...

  a[n] = 5·a[n-1] -5 . . . . . eliminate parentheses

  a[n] +5 = 5·a[n -1] . . . . add 5

  a[n-1] = (a[n] +5)/5 . . . . divide by 5

For a[3] = 120, a[2] = (120 +5)/5 = 25

For a[2] = 25, a[1] = (25 +5)/5 = 6

The first term of the sequence is 6.

Answer:

10%

Step-by-step explanation:

In the image attached below, we can see that there are

8 tiles of letter O

2 tiles of letter V

This means that there are 10 total tiles of the letters that you want to get (O and V). Since there are a total of 100 tiles we need to divide this value by 100 to get the probability of getting one of these tiles.

10 / 100 = 0.10 or 10%

Finally, we can see that the probability of selecting a O or a V is 10%

Answer: 8% of O, 2% of V

Step-by-step explanation: There are 8 O tiles and 2 V tiles

Answer: 0.4207

Step-by-step explanation:

Let [tex]\overline{x}[/tex] be the sample mean area.

Given: Population mean : [tex]\mu=250[/tex] sq. feet

Standard deviation: [tex]\sigma=2[/tex] sq. feet

Sample size : n= 10

The probability that the sample mean area is [tex]249.6 \text{ ft}^2[/tex] or less if the manufacturer’s claim is true.

[tex]P(\overline{x}<249.6)=P(\dfrac{\overline{x}-\mu}{\sigma}<\dfrac{249.6-250}{2})\\\\= P(z<-0.2)\ \ \ \ [z=\dfrac{\overline{x}-\mu}{\sigma}]\\\\=1-P(z<0.2)\\=1- 0.5793\\\\=0.4207[/tex]

Required probability = 0.4207

Using the normal distribution and the central limit theorem, it is found that the probability that the sample mean area is 249.6 ft^2 or less if the manufacturer’s claim is true is of 0.2636.

In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

In this problem:

The probability that the sample mean area is 249.6 ft^2 or less if the manufacturer’s claim is true is the p-value of Z when X = 249.6, hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{249.6 - 250}{\frac{2}{\sqrt{10}}}[/tex]

[tex]Z = -0.6325[/tex]

[tex]Z = -0.6325[/tex] has a p-value of 0.2636, which is the probability.

To learn more about the normal distribution and the central limit theorem, you can take a look at https://brainly.com/question/24663213