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3 years ago

9

If 40% of a number is 56 what was the original number

1 answer:

svp [43]3 years ago

5 0

Percent is pars out of 100
40%=40/100=4/10=0.4
'of' means multiply
0.4 times something=56
divide both sides by 0.4
something=140

th enumber is 140

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enot [183]

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Given the functions expressed as:

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

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

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

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