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nikklg [1K]
3 years ago
5

PLEASE HELP ME!!!!

Mathematics
1 answer:
kiruha [24]3 years ago
8 0
All i did was a the proportions together and came up with 10x-3x=25.

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andrey2020 [161]
I think it is option 1 sorry if wrong
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MARKING AS BRAINLIEST!! Starr if given functions are inverse)!
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Answer: They are inverses of each other

==========================================================

Explanation:

We'll need to compute h(f(x)) and f(h(x)) to see if we get x each time.

h(x) = 9x-4\\\\h(f(x)) = 9(f(x))-4\\\\h(f(x)) = 9\left(\frac{x+4}{9}\right)-4\\\\h(f(x)) = x+4-4\\\\h(f(x)) = x\\\\

and,

f(x) = \frac{x+4}{9}\\\\f(h(x)) = \frac{h(x)+4}{9}\\\\f(h(x)) = \frac{9x-4+4}{9}\\\\f(h(x)) = \frac{9x}{9}\\\\f(h(x)) = x\\\\

Both composite functions lead to x each time.

The equations h(f(x)) = x and f(h(x)) = x being true means each function is the inverse of the other.

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3 years ago
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here are five rods a-1 a a a a+3 all measurements are in cm the total length of the five rods is l cm find a formula for l in te
Elenna [48]

Answer:

I=5a+2 (simplified form)


Step-by-step explanation:

I is the total length of all the 5 rods.

Each of the 5 parts lengths are (a-1), a, a, a, (a+3), respectively.


<em>We add all of them and equate it to I:</em>

I=(a-1)+a+a+a+(a+3)

<em>Simplifying this, we take like terms and add:</em>

<em>I=(a-1)+a+a+a+(a+3)\\I=5a-1+3\\I=5a+2</em>


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ladessa [460]

We are given numbers 7 \times 10^9 \ and \ 1.4 \times 10^{12}.

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Let us divide second number by first number.

1.4 \times 10^{12} ÷ 7 \times 10^9.

On dividing 1.4 by 7, we get 0.2.

And on dividing 10^{12} \ by\ 10^9, we get  10^{12-9} = 10^3

Therefore,

1.4 \times 10^{12} ÷ 7 \times 10^9 =0.2 \times 10^3 .

0.2 \times 10^3 =200.

<h3>Therefore, 1.4 \times 10^{12} is 200 times of 7 \times 10^9.</h3>
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I jus want a answer, explanation is optional
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B is the answer darling haha youre welcome i don’t feel like explaining
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