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3 years ago

A line passes through (1, –5) and (–3, 7).

1 answer:

5 0

Slope of the line =(7- -5) / (-3-1) = 12 / -4 = -3

a. point slope form is y + 5 = -3(x - 1) Answer

b rearrange to slope-intercept form:-
y = -3x + 3 - 5
y = -3x - 2 Answer

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Kelly and Max run a race. Max takes 42 seconds to run the race. She is 7 seconds faster then Kelly. How many seconds does Kelly

yan [13]

Answer:

35 seconds

Step-by-step explanation:

if you simply minus 7 seconds from max 42 second time you get 35 seconds.

4 0

4 years ago

Read 2 more answers

What happens to the figure when you dilate by a scale factor greater than 1 What do you notice about the image What are the simi

yarga [219]

When you dilate by a scale factor greater than the image is an enlargement (a stretch).

What is dilation?

A dilation is a transformation that creates an image that has the same shape as the original but is larger.

• An enlargement is a dilation that produces a larger image.

• A reduction is a dilation that produces a smaller image.

• A dilation expands or contracts the original figure.

A description of a dilation includes the scale factor (or ratio) and the center of the dilation.

• The center of dilation is a fixed point in the plane.

• If the scale factor is greater than 1, the image is an enlargement (a stretch).

• If the scale factor is between 0 and 1, the image is a reduction (a shrink).

• If the scale factor is 1, the figure and the image are congruent.

hence, when you dilate by a scale factor greater than the image is an enlargement (a stretch).

To learn more about the dilation visit,

brainly.com/question/11914738

#SPJ4

6 0

1 year ago

One of the tallest living men has a height of 236 cm. One of the tallest living women is 224 cm tall. Heights of men have a mean

Roman55 [17]

Answer:

A. The woman is relatively taller because the z score for her height is greater than the z score for the man's height.

Step-by-step explanation:

Whoever has the highest z-score, is taller relative to the population of the same gender.

The z-score of a value X in a set with mean $\mu$ and standard deviation $/sigma$ is given by:

$Z = \frac{X - \mu}{\sigma}$

Solution:

Heights of men have a mean of 170 cm and a standard deviation of 6 cm. One of the tallest living men has a height of 236 cm. So the z-score of his height is:

$Z = \frac{X - \mu}{\sigma} = \frac{236-170}{6} = 11$

Heights of women have a mean of 161 cm and a standard deviation of 5 cm.

One of the tallest living women is 224 cm tall. The z-score of the women's height is

$Z = \frac{X - \mu}{\sigma} = \frac{224-161}{5} = 12.6$

The women has a higher z-score, so she is relatively taller.

The correct answer is A

3 0

4 years ago

Find the median of the data set. 1470, 1590, 1420, 1215, 1405, 1370, 1465, 1460, 1230

zimovet [89]

Answer:

the median is the middle number find the middle number of these and there's your answer

8 0

3 years ago

Read 2 more answers

I’m confused on this one

Anvisha [2.4K]

Hey!

It's reduction because the square becomes smaller, and that happens when reducing.

One side of the larger square is 4. The same side on the smaller square is 2. When it's reduction, the answer is less than 1. It will be 1/2 because 2 is 1/2 of 4.

That means your answer is d.

8 0

3 years ago