Question

MEDAL!!

Given f(x) = 5x − 7 and g(x) = 11x − 1, solve for (f + g)(x) and select the correct answer below.

(f + g)(x) = 16x − 6
(f + g)(x) = 16x + 8
(f + g)(x) = 16x − 8
(f + g)(x) = 6x − 6

Answer 1

@welshfella

Answer 2

Please help!!

Answer 3

@welshfella

Answer 4

@nincompoop

Answer 5

@undeadknight26

Answer 6

I'd say B or C.

Answer 7

Which one makes more sense? I'm clueless

Answer 8

Really your just taking the two equations and combining them.

Answer 9

I would say C but I'm really rusty on this type of stuff.

Answer 10

I was thinking the same, do you think you could help me with two more?

Answer 11

I could try mate.

Answer 12

Great

Answer 13

If (9x − 4)(9x + 4) = ax2 − b, what is the value of a?

The value of a is _____________.

Numerical Answers Expected!

Answer for Blank 1:

Answer 14

"Numerical Answers Expected!"
Darn...I thought it was llama...

Answer 15

Lol same, i guess they mean take the answer and put it into a numerical answer

Answer 16

A = 81
Taken from:
http://www.wolframalpha.com/input/?i=%289x+%E2%88%92+4%29%289x+%2B+4%29+%3D+ax2+%E2%88%92+b

Answer 17

Great!!! One more?

Answer 18

Consider the functions f(x) = x2 − 13 and g(x) = x + 5. What is the value of f[g(−4)]?

−12
3
−13
8

Answer 19

This one is pinching me.

Answer 20

same

Answer 21

I have no idea lol

Answer 22

Alright man thanks for the help!!

Answer 23

ANy time m8!
Sorry I couldn't help all the way!