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andre [41]
4 years ago
7

A number increased by 15 is 38 as an equation

Mathematics
1 answer:
Vlad1618 [11]4 years ago
3 0

Answer:

15 + x = 38

KEY:

<u>Increased = addition</u>

is= equals to

a number = put any random letter, or my choice is just using "x" so its just means a varaible

HOPE THIS HELPED!!!!! :D

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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}}

5 0
2 years ago
55 is 40% of what number
Nutka1998 [239]
First of all, you must change 40% into a decimal by multiplying by 100⇒.40
Then you divide 55 by .40
55÷.40=137.5
Therefore, 55 is 40% of 137.5
6 0
4 years ago
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Draw 2u + 4v. I NEED HELP LOLLLL
Sindrei [870]
I literally just saw a question like this, but it won’t let me upload my photo, says the answer is incorrect
8 0
2 years ago
13. Kim has $4.25 in change, including
BartSMP [9]

Hi!

It would be B, because when we do $4.25-$2.60=$1.65. When we divide that be 0.25, that equals 6.6, but you can't have a percent of a coin, so we round down.

Hope this helped!

3 0
4 years ago
Five balls are numbered 1 through 5 and placed in a bowl. Josh will randomly choose a ball from the bowl, look at its number and
andrezito [222]

Answer:

1/5

Each of the 5 balls has 5 possible combinations, as each one (1 - 5) can be paired with any of the 5. Therefore, the total number of combinations is 25.

For the product to be even, one of the balls has to be a 2 or 4. However, 2 multiplied by any number 1 - 5 is not greater than 10, so 2 is not an option. This means one of the balls has to be a 4.

There are only 3 numbers of 1 - 5 that, when multiplied by 4, are greater than 10. These are 3, 4, and 5.

This means that there are 5 combinations that work:

3 × 4 = 12

4 × 3 = 12

4 × 4 = 16

4 × 5 = 20

5 × 4 = 20

This means that 5 out of 25 combinations produce a result that is both even and greater than 10.

5/25 is then simplified to 1/5

4 0
3 years ago
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