Someone me,
this is about vectors
let u = < -5, -9> , v = < 6, 8> . find -8u - 2v.

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.