For the function f, use composition of functions to show that f-1 is as given.Let 
. Show that 
What will be an ideal response?
1. (f-1 ? f)(x) = f-1(f(x)) = f-1
= 
- 9 = 
- 9 = (x + 9) - 9 = x;
2. (f ? f-1)(x) = f(f-1(x)) = f
= 
= 
= 
= x
Mathematics
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Write the expression as one logarithm.log7 7 + log7 11
A. log7 18 B. log7 77 C. log14 18 D. log14 77
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Solve the equation.2x2 = 3x + 5
A. x = 
, x = 1
B. x = 
, x = -1
C. x = 
, x = -1
D. x = 
, x = 0
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Factor.125a3 - 64b3
A. (5a - 4b)(25a2 + 16b2) B. (125a - 4b)(a2 + 20ab + 16b2) C. (5a + 4b2)(25a2 - 20ab + 16b2) D. (5a - 4b)(25a2 + 20ab + 16b2)
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