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3 years ago

5

Fifteen is increased to 27. What is the percent of change? 55.6% 37% 44.4% 80%

1 answer:

Y_Kistochka [10]3 years ago

7 0

27-15 = 12

12/15 = 0.8 = 80%

Answer is 80%

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horrorfan [7]

Complete Question

The complete question is shown on the first uploaded image

Answer:

a

$g(h(x)) = \sqrt[4]{x^2 + x +5} + 3$

b

$h(g(x)) = \sqrt{x} + 7\sqrt[4]{x} + 17$

c

$h(h(x)) = [x^2 + x + 5 ]^2 + x^2 + x + 10$

Step-by-step explanation:

From the question we are told that

$h(x) = x^2 + x + 5$

and

$g(x) = \sqrt[4]{x} + 3$

Considering first question

Now we are told g(h(x))

i.e

$g(h(x)) = [x^2 + x + 5 ]^{\frac{1}{4} } + 3$

=> $g(h(x)) = \sqrt[4]{x^2 + x +5} + 3$

Considering second question

Now we are told h(g(x))

i.e

$h(g(x)) = [x^{\frac{1}{4} } + 3]^2 + x^{\frac{1}{4} } + 3 + 5$

=> $h(g(x)) = x^{\frac{1}{2} } + 6x^{\frac{1}{4} } + 9+ x^{\frac{1}{4}} + 8$

=> $h(g(x)) = x^{\frac{1}{2}} + 7x^{\frac{1}{4}} + 17$

=> $h(g(x)) = \sqrt{x} + 7\sqrt[4]{x} + 17$

Considering third question

$h(h(x))= [x^2 + x + 5]^2 + [x^2 + x + 5 ] + 5$

=> $h(h(x)) = [x^2 + x + 5 ]^2 + x^2 + x + 10$

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4 years ago