SOLUTION: help a girl out!! f(x) = 15x^3 + 13x^2 - 15x + 15 g(x) = 15x + 11 find g(f(9)) A 639 B-5943226 C-52466 D-6288203 E 178031 F -4595

Question 791771: help a girl out!!
f(x) = 15x^3 + 13x^2 - 15x + 15
g(x) = 15x + 11
find g(f(9))
A 639
B-5943226
C-52466
D-6288203
E 178031
F -4595

Found 2 solutions by solver91311, MathLover1:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Write in pencil. Erase each of the s and replace it with . Do the arithmetic indicated. Given correct arithmetic, you will have the value of

Write in pencil. Erase each and replace it with the value of previously calculated. Do the indicated arithmetic.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it

Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

find
first calculate , then calculate the value of at the value of :

so, your answer is:
RELATED QUESTIONS
17. f(x) = 15x3 + 13x2 - 15x + 15 g(x) = 15x + 11 find g(f(9)) A. 639 B.... (answered by ikleyn,MathLover1)
Domain and Range- 16. f(x) = 11x + 15 g(x) = -11x3 - 15x2 + 13x - 13... (answered by ikleyn)
* would love you forever I'd you'd help me! f(x) = 15x3 + 13x2 - 15x + 15 g(x) =... (answered by solver91311)
15. f(x) = -13x2 + 12x + 14 g(x) = 11x - 13 find f(g(7)) A. -162,632 B. -6288203 C.... (answered by josgarithmetic)
I dont know how to get these? I only know f(x) 's? help me please! f(x) = 15x - 12 (answered by MathLover1)
15. f(x) = -13x2 + 12x + 14 g(x) = 11x - 13 find f(g(7)) A. -162,632 B.... (answered by ikleyn)
f(x) = 15x - 12 g(x) = -15x^2 + 14x - 10 find g(g(7)) A. -6288203 B. 6543... (answered by Cromlix,Alan3354)
13. f(x) = -13x2 - 7x4 - 11x find f(5) A. 538 B. -6288203 C. 639 D. -4595 E. (answered by math_tutor2020,josgarithmetic)
19. f(x) = 15x + 12 g(x) = -10x + 15 find f(g(8)) A. 639 B. -963 C.... (answered by MathLover1,ikleyn)