Use the function to answer the question.

f(x) = 4x - 1; g(x) = 5x^2

what is equal to (f o g)(x)?

80x^2 - 40x + 5

20x^3 - 5x^2

5x^2 + 4x - 1

20x^2 - 1

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?

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 similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3