Write an exponential function whose graph passes through the points (–1, 1.5) and (4, 48).

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

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?

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?