Which expression is equivalent to

Find the equation of the line whose slope is 1/3

Masja [62]

Answer:

It means that when x = 3, y = 1, obviously when the first function expression takes 3, y = 1

3 0

3 years ago

The product of a number and two

vekshin1

Step-by-step explanation:

If u want to get the product of a number and two ..

Then just double the number..

or u can add it to itself again...

For example=1000x2

=2000

or u can

1000+1000

=2000

u should pick the first way as it's faster and efficient

Hope that helps

3 0

3 years ago

est scores for a statistics class had a mean of 79 with a standard deviation of 4.5. Test scores for a calculus class had a mean

Arte-miy333 [17]

Answer:

The z-score for the statistics test grade is of 1.11.

The z-score for the calculus test grade is 7.3.

Due to the higher z-score, the student performed better on the calculus test relative to the other students in each class

Step-by-step explanation:

Z-score:

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

In this question:

The grade with the higher z-score is better relative to the other students in each class.

Statistics:

Mean of 79 and standard deviation of 4.5, so $\mu = 79, \sigma = 4.5$