Y is inversely proportional to a cubed When a=2, y=10
a is directly proportional to x
When x=4, a=20
Find a formula for y in terms of x.
Give your answer in its simplest form.

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

a. -0.3 > -0.33

translate k to n and reflect across the line containing jk.

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.