Let f be the function given by f(x)=(x-1)(x^2-4)/x^2-a.

What is the solution set of the quadratic inequality x^2-5< or equal to 0

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b