Which function has an inverse that is a function?
o b(x) = x2 + 3
od(x) = -9
om(x) = -7x
o p(x) = |x|

the equation is not included but the answer is (1.50, 2.00, 2.75)

step-by-step explanation:

elli's hot cocao is more chocolaty

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q