A pre-image has a side length of 93 and its corresponding image side length is 8.

Mathematics

1 answer:

shutvik [7]3 years ago

8 0

Answer:

The ratio of a side length of the image to the corresponding side length of the original figure. Coordinate notation for a dilation. You can describe a dilation with respect to the origin with the notation (x,y) ️(kx,ky), where k is the scale factor. Reduction.

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Which number has a repeating decimal form?

blondinia [14]

Answer:

D. $\frac{2}{6}$

Step-by-step explanation:

2÷ 6 = 0.33333

As you can see 3 is repeating.

Therefore $\frac{2}{6}$ as repeating decimal form.

3 0

2 years ago

There are two college entrance exams that are often taken by students, Exam A and Exam B. The composite score on Exam A is appro

elena55 [62]

Answer:

B.The score on Exam A is better, because the percentile for the Exam A score is higher.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

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

The Z-score 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. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

Two exams. The exam that you did score better is the one in which you had a higher zscore.

The composite score on Exam A is approximately normally distributed with mean 20.1 and standard deviation 5.1.

This means that $\mu = 20.1, \sigma = 5.1$ .