suppose f(x) = x^2– 7. and g(x) = 5 – x^2 ,then g(f(-4)) =

- 76

Step-by-step explanation:

To evaluate g(f(- 4)) , evaluate f(- 4) then substitute this value into g(x)

f(- 4) = (- 4)² - 7 = 16 - 7 = 9, then

g(9) = 5 - 9² = 5 - 81 = - 76

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

sine

step-by-step explanation: