Which numbers are greater than 7 x 10^-4

choose all answers that are correct.

a. 8 x 10^ -4 < < <
b. 9 x 10^ -5
c. 4 x 10^ -4
d. 3 x 10^ -2 < < <
e. 7 x 10^ -5

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

What is the frequency of the sinusoidal graph?

V=x^3+13x^2+34x-48 find an expression for the missing dimension