The number of hours per day a college student spends on homework has a mean of 6 hours and a standard deviation of 1.25 hours. yesterday she spent 3 hours on homework. how many standard deviations from the mean is​ that? round your answer to two decimal places.

-2.4

Step-by-step explanation:

To calculate how many standard deviations you are from the mean you use Z-score, which is exactly that.

The formula is:

Replacing the information given in the formula you get:

She is -2.4 standard deviations from the mean or 2.4 to the left

answer: it's a

step-by-step explanation:

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.