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Nadya [2.5K]
3 years ago
5

A polygon is graphed on a coordinate grid with (x,y) representing the location of a certain point on the polygon. the polygon is

transformed using the rule (x,y) →(ax,ay). which statement must be true?
a. If a is greater than 1, the image of the polygon is congruent to the polygon.
b. If a is between 0 and 1, the image of the polygon is smaller than the polygon.
c. If a is between 0 and 1, the image of the polygon is congruent to the polygon.
d. If a is greater than 1, the image of the polygon is smaller than the polygon.
Mathematics
1 answer:
nasty-shy [4]3 years ago
5 0

Answer: D. if a is greater than 1, the image of the polygon is smaller than the polygon

Step-by-step explanation: MARK ME BRAINLIEST!!!!

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e-lub [12.9K]

Using the normal distribution, we got that expression for the z-score of her test score is

z= \frac{72-29}{7} \\\\z=-7/7\\\\z=-1

<h3>What is Normal Probability Distribution?</h3>

it's a type of probability distribution which is  symmetric about the mean, it gives data near the mean are more frequent than data far from the mean.

Given that mean =\mu=79

and standard deviation =\sigma = 7

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we know that formula of z-score is

z=\frac{X-\mu}{\sigma}

Hence Z-score can be calculated as

z= \frac{72-29}{7} \\\\z=-7/7\\\\z=-1

Using the normal distribution, we got that expression for the z-score of her test score is

z= \frac{72-29}{7} \\\\z=-7/7\\\\z=-1

To learn more about the normal distribution visit : brainly.com/question/24663213

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