2 years ago

PLEASE HELP QUICK !!!!

Mathematics

2 answers:

NNADVOKAT [17]2 years ago

7 0

Fx 3
Fx 4

Hope it helpes

I think

polet [3.4K]2 years ago

3 0

Answer:

fx is 4, gx is 3, hx is anything greater than, not equal to, 4.

Hope this helps!

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3 years ago

PLEASE HELP

Oksi-84 [34.3K]

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3 years ago

Help me out please, im only typing this much because its making me...

Genrish500 [490]

Answer:

B. $x^{2} +2x-8$

Step-by-step explanation:

Here the best method to solve is by substituting the end values of the set in each option , otherwise it will a time consuming problem.

Now substitute x=-4 in all the options

A. $x^{2} -2x-8$

16+8-8=16>0

so out of option A and C option C is correct.

B. $x^{2} +2x-8$

16-8-8=0 which means for the values of x>-4 $x^{2} +2x-8$ is less than 0

Now substitute x=2 in all the options

A. $x^{2} -2x-8$

4-4-8=-8<0 . so option A and C both are incorrect.

B. $x^{2} +2x-8$

4+4-8=0 which means for the values of x<2 $x^{2} +2x-8$ is less than 0

Therefore the correct option is B

6 0

3 years ago