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3 years ago

What's the addition equation for the problem 15-9=6

Mathematics

1 answer:

Allisa [31]3 years ago

4 0

Answer:

9+6 =15

Step-by-step explanation:

I just transferred the 9 to the other side...and boom! you have an addition equation !!!

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Find the inverse please and thank you

Amanda [17]

The inverse $f^{-1}(x)$ is such that

$f\left(f^{-1}(x)\right) = x$

We have

$f\left(f^{-1}(x)\right) = -9\sqrt{f^{-1}(x) - 8} + 5 = x$

Solve for the inverse.

$-9\sqrt{f^{-1}(x)-8} + 5 = x \\\\ -9\sqrt{f^{-1}(x)-8} = x-5 \\\\ \sqrt{f^{-1}(x)-8} = -\dfrac{x-5}9 \\\\ \left(\sqrt{f^{-1}(x)-8}\right)^2 = \left(-\dfrac{x-5}9\right)^2 \\\\ f^{-1}(x) - 8 = \dfrac{(x-5)^2}{81} \\\\ \boxed{f^{-1}(x) = 8 + \dfrac{(x-5)^2}{81}}$

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2 years ago

The record high temperature in January was 18 degrees. The record low temperature was –7 degrees. What is the amount of change b

vodka [1.7K]

Answer: $25^{\circ}$

Step-by-step explanation:

Given

The highest temperature recorded is $18^{\circ}$

The lowest temperature recorded is $-7^{\circ}$

The amount of change between the high and the low temperatures is

$\Rightarrow 18-(-7)=18+7\\\Rightarrow 25^{\circ}$

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3 years ago

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3 years ago

What's the addition equation for the problem 15-9=6​

What's the addition equation for the problem 15-9=6