If cos(23x+20)°=sin(2x−10)°, find the acute angles of the corresponding right triangle. a=?
b=?

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142