(3x^2 + 2x -2) + ( -2x^2 + 5x+5)
my answer
5x^2 + 7× +7
am i right

Suppose a least-squares regression line is given by modifyingabove y with caret equals 4.302 x minus 3.293. what is the mean value of the response variable if xequals20?

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?