Violet earned a score of 662 on Exam A that had a mean of 550 and a standard deviation of 40. She is about to take Exam B that has a mean of 550 and a standard deviation of 40. How well must Violet score on Exam B in order to do equivalently well as she did on Exam A? Assume that scores on each exam are normally distributed.

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation:

you can use a^2+ b^2=c^2