The average test scores for a particular test in algebra was 84 with a standard deviation of 5. what percentage of the students scored higher than 89%? explain your answer.

The percentage of the students scored higher than 89% is 15.87%

Step-by-step explanation:

we are given

The average test scores for a particular test in algebra was 84

so, mean is 84

a standard deviation of 5

so,

we have

x=89

now, we can use z-score formula

now, we can plug values

now, we can use calculator

and we get

So,

The percentage of the students scored higher than 89% is 15.87%

$650 per month plus utilities

step-by-step explanation:

just based on the info you gave, it would seem more cost effective to rent at $650 per month plus utilities.   if utilities are, in fact, $150 per month, your monthly living costs would be $800 as opposed to the other option of $825.

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.