Question

Help Please. :c
1.) Whats the inverse of f if f (x) = ^3sqrt x-2 ????
A. f^-1(x)= x^3+8
B. f^-1(x)= 2- ^3sqrt x
C. f^-1(x)= x^3+2
D. f^-1(x)= 1 / ^3sqrt x-2

2. What is the simplest form of the expression??
sqrt 2 - sqrt 6 / sqrt 2 + sqrt 6

A. 8-4 sqrt 3 / 8
B. 8+4 sqrt 3 / 8
C. 2 - sqrt 3
D. -2 + sqrt 3

Answer 1

\(f(x) = \sqrt[3] x -2\) or \(f(x) = \sqrt[3]{x-2}\)??

Answer 2

2nd one.

Answer 3

What do you think #2 is?

Answer 4

@DolphinDawg I have no idea , but if I had to guess id say C? idk

Answer 5

Hmm give me a secnd

Answer 6

alright

Answer 7

Heres my work :


1 Rationalize the denominator: 6√2√(2√2√)=6√2√2
2√−6√2√2+6√

2 Simplify 6√2√ to 12−−√
2√−12−−√2+6√

3 Simplify 12−−√ to 23√
2√−23√2+6√

4 Simplify 23√2 to 3√
2√−3√+6√


Done
Decimal Form: 2.13165249759

Answer 8

well i need to know for sure D:

Answer 9

ok

Answer 10

@TuringTest

Answer 11

thankyou.. can u help with other one?

Answer 12

i dont know, i havent turned it in

Answer 13

yeah & c for both???????????????????

Answer 14

whats #1

Answer 15

it was D @DolphinDawg -_-