3 years ago

Pls help, 7th grade math, Will give brainliest

Mathematics

1 answer:

sveta [45]3 years ago

3 0

Answer:

I'm sorry I don't know

Step-by-step explanation:

but maybe next week I'll be able to answer you

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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)?

Vinil7 [7]

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 $g(f(x))=x$

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

5 0

2 years ago

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Simplify 5y^-2<br><br> please help fast!!!

Semmy [17]

Answer:

25y2 i think

Step-by-step explanation:

i hope it helps

4 0

1 year ago

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Multiply (x-2) (2x+4)

Bas_tet [7]

Answer:

$2x {}^{2} - 8 = 0$

Step-by-step explanation:

$(x-2) (2x+4) = 0\\ 2x {}^{2} + 4x - 4x - 8 = 0 \\ 2x {}^{2} - 8 = 0$

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3 years ago

What is the measure of an exterior angle of a rectangle of a regular 11-sided polygon?

horsena [70]

$180 \div 11 =$

4 0

3 years ago

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Let g(x) = f(x+3) for some function f(x). Is g(x) a function? From the previous problem, let the domain of f(x) be [1, 4). What

padilas [110]

The domain of g(x) is [4, 7)

<h3>How to determine the domain of g(x)?</h3>

The function is given as:

g(x) = f(x + 3)

Since f(x) is a function, then g(x) is also a function

The domain of f(x) is given as:

[1, 4)

The equivalent of these values in g(x) are

x = 1 + 3 = 4

x = 4 + 3 = 7

Hence, the domain of g(x) is [4, 7)