Find the geometric mean between 4 square root of 3 and 10 square root of 3

The Raimonde family drove 1,764 miles across the United States on their vacation.If it took a total of 28 hours, what was their

LuckyWell [14K]

Miles per hour = Total miles/ total no of hours
1764 miles divided by 28 hours = 63 mph

8 0

3 years ago

5. Which has at least 1 set of parallel sides but is not a parallelogram? Select all

viktelen [127]

Answer:

E

Step-by-step explanation:

It has only two parallel sides

5 0

4 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 $\mu = 20.1, \sigma = 5.1$ .