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Yuki888 [10]
3 years ago
9

Somebody please help me answer this

Mathematics
1 answer:
nata0808 [166]3 years ago
7 0

Answer:

D

Step-by-step explanation:

When somethin is decreasing you would subtract the percent it was decreasing by, by 1.

.024 - 1 = .976

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Tommy can exchange 8 euros for 11 dollars.
Georgia [21]

Answer:

9 dollars and 40 cents

Step-by-step explanation:

   

5 0
3 years ago
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Find the inverse of the following function. Then prove they are inverses of one another.
solmaris [256]

Answer: \dfrac{x^2+1}{2}

Step-by-step explanation:

Given

f(x)=\sqrt{2x-1}

We can write it as

\Rightarrow y=\sqrt{2x-1}

Express x in terms of y

\Rightarrow y^2=2x-1\\\\\Rightarrow x=\dfrac{y^2+1}{2}

Replace y be x to get the inverse

\Rightarrow f^{-1}(x)=\dfrac{x^2+1}{2}

To prove, it is inverse of f(x). f(f^{-1}(x))=x

\Rightarrow f(f^{-1}(x))=\sqrt{2\times \dfrac{x^2+1}{2}-1}\\\\\Rightarrow f(f^{-1}(x))=\sqrt{x^2+1-1}\\\\\Rightarrow f(f^{-1}(x))=x

So, they are inverse of each other.

8 0
3 years ago
2/7 • 9 1/10<br> Please help
nordsb [41]
\frac{2}{7} * 9 \frac{1}{10} =  \frac{2}{7} *  \frac{91}{10} =  \frac{2~*~91}{7~*~10} =  \frac{182}{70} = 2 \frac{42}{70} = 2  \frac{3}{5}
3 0
3 years ago
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Write each number<br><br> 1. 1,000 more than 3,872
Mrac [35]

The value for a number that is 1000 more than 3,872 will be 4,872

In the given question, it is stated that we have to find out the value of the expression given. The expression states that we have to find out a number that is 1000 more than 3872.

This can easily be done. To find out the value for a number that is 1000 greater than 3872, we just need to add the value to the number i.e. we need to add 1000 to 3872. Let the new number be 'x'.

So, by solving this condition, we get

=> x = 3872 + 1000

=> x = 4872

Here we get x = 4872.

Hence, 1000 more than 3,872 will be 4,872.

To know more about Linear Equations, Click here:

brainly.com/question/13738061

#SPJ1

6 0
1 year ago
Someone help. You do not have to explain it
nadezda [96]

Answer:

x=0, y=3

x=5, y= 2

Step-by-step explanation:

6 0
3 years ago
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