What is the answer to this

Mathematics

1 answer:

liberstina [14]3 years ago

7 0

Answer:

T, F, F, F

Step-by-step explanation:

Sliding the figure to the left 5 times only changes vertex positions, not the shape (making the third false), the sides (making the second and fourth false), or the angle (making the first true)

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Scores on a recent exam followed a normal distribution and letter grades will be assigned with 15% A, 35% B, 30% C, 15% D, and 5

noname [10]

Using the normal distribution, it is found that Sue will get a letter grade of B.

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

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

It measures how many standard deviations the measure is from the mean.
After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.

In this problem, Sue got a grade of 0.85, hence $z = 0.85$ .

Looking at the z-table, z = 0.85 has a p-value of 0.8023, hence she is approximately in the top 20%, which is below the top 15% but above the top 50%, hence she got a letter grade of B.

A similar problem is given at brainly.com/question/25745464

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What is the y-intercept of the following equation? x + 2y = 8 a 8 b 4 C 6 d 2

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X+2y=8
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3 years ago

An athletic field is a 48 yd-by-96 yd rectangle, with a semicircle at each of the short sides. A running track 20 yd wide surr

MA_775_DIABLO [31]

The distance would be equal to 2 times the longest side of the rectangle plus twice the shortest side multiplied by pi / 2 for the semicircle, that is:

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D = 2 * (96) + 2 * (1/2) * pi * 48

D = 192 + pi * 48

This shorter side, which starts at 48, will expand each time by two more in proportion to 20 of the running track between 8 than the number of divisions, that is, 2 * (20/8) = 5

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D8 = 192 + 3.14 * (48 + 35) = 452.62 yd

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