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2 years ago

What’s the value of x???

Mathematics

2 answers:

Anni [7]2 years ago

8 0

Answer:

C. x=15

Step-by-step explanation:

Use the Pythagorean Theorem:

$a^{2} +b^{2} =c^{2}$

Plug in the known values:

$9^2+12^2=c^2$

Simplify:

$81+144=c^2$

Solve:

$255=c^2$

$\sqrt{225} =c^$

$15=c$

Black_prince [1.1K]2 years ago

3 0

Answer:??? sorry i dont know

Step-by-step explanation:

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enot [183]

Since g(h(x))=h(g(x))= x, hence functions h and g are inverses of each other

Given the functions expressed as:

$h(x) =\sqrt{2x+2}\\g(x)\frac{x^2-2}{2} \\$

In order to check whether they are inverses of each other, we need to show that h(g(x)) = g(h(x))

Get the composite function h(g(x))

$h(g(x))=h(\frac{x^2-2}{2} )\\h(g(x))=\sqrt{2(\frac{x^2-2}{2} )+2}\\h(g(x))=\sqrt{x^2-2+2} \\h(g(x))=\sqrt{x^2}\\h(g(x))=x$

Get the composite function g(h(x))

$g(h(x))=\frac{(\sqrt{2x+2} )^2-2}{2} \\g(h(x))=\frac{2x+2-2}{2}\\g(h(x))=\frac{2x}{2}\\g(h(x))=x$

Since g(h(x))=h(g(x))= x, hence functions h and g are inverses of each other

Learn more on inverse functions here; brainly.com/question/14391067

7 0

2 years ago

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