3 years ago

12x-4y-2z-5y+x like terms

Mathematics

1 answer:

Nookie1986 [14]3 years ago

3 0

If you mean combine like terms, then your answer is 13x-9y-2z

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12 rounded to the nearest tenth in between 167

Alex777 [14]

No, 12 rounded to the nearest tenth is 12.0

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A blueprint for a building includes a rectangular room that measures 3 inches long and 7.5 inches wide The scale for the bluepri

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3 · 7.5 = 22.5: 22.5 is the area of the building on the blueprint in inches

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3 years ago

If f (x) = 5 x minus 25 and g (x) = one-fifth x + 5, which expression could be used to verify g(x) is the inverse of f(x)?

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Answer:

The expression used to represent g(x) as inverse of f(x) is $\frac{1}{5}(5x-25)+5$

Option B is correct.

Step-by-step explanation:

We are given:

$f(x)= 5x-25\\g(x)=\frac{1}{5}x+5$

We need to find the expression that could be used to verify g(x) is the inverse of f(x).

We know that $g(f(x))=x$ is inverse of function

So placing value of f(x) in g(x)

$g(f(x))=\frac{1}{5}(5x-25)+5$

So, the expression used to represent g(x) as inverse of f(x) is $\frac{1}{5}(5x-25)+5$

Option B is correct.

We can also solve to prove that $g(f(x))=x$

$g(f(x))=\frac{1}{5}(5x-25)+5\\g(f(x))=\frac{5}{5}(x-5)+5\\g(f(x))=x-5+5\\g(f(x))=x$

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Step-by-step explanation:

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