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mina [271]
3 years ago
5

I need help simplifying 8^3

Mathematics
2 answers:
abruzzese [7]3 years ago
7 0
8^3
= 8*8*8
= 512

8^3 simplified is 512
Dafna1 [17]3 years ago
6 0
8^3 = 512
8^3 also eqauls 8 x 8 x 8. 
I hope I helped!
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If f(x) = х2 – 2х + 3, thеn find<br> f(-3).
exis [7]

Answer:

\huge\boxed{\sf f(-3) = 18}

Step-by-step explanation:

\sf f(x) = x^2 - 2x + 3

<u>Put x = -3</u>

\sf f(-3) = (-3)^2 -2(-3) + 3\\f(-3) = 9 + 6 + 3\\f(-3) = 18

3 0
3 years ago
Who can help me with this number 5 I need help with
Ann [662]

Answer:

A.Y

B.X

C.They become opposite

Step-by-step explanation: A. When you reflect the x - axis you don't change the y - axis  B: Same as A C: You multiply them both by -1 basicly  


6 0
3 years ago
Whats the answer to that question?
gavmur [86]

Answer:

-0.9090... can be written as \frac{10}{11}.

Explanation:

Any <em>repeating </em>decimal can be written as a fraction by dividing the section of the pattern to be repeated <em>by </em>9's.

We can start by listing out

0.909090... = 9/10 + 0/100 + 9/1000 + 0/10000 + 9/100000 + 0/1000000 + ...

Now. we let this series be equal to x, that is

x = 9/10 + 0/100 + 9/1000 + 0/10000 + 9/100000 + 0/1000000 + ...

Now, we'll multiply both sides by 100 .

100x = 90 + 0 + 9/10 + 0/100 + 9/1000 + 0/10000 + ...

Then, subtract the 1st equation from the second like so:

100x = 90 + 0 + 9/10 + 0/100 + 9/1000 + 0/10000 + 9/100000 + 0/1000000 + ...

-x = - 9/10 - 0/100 - 9/1000 - 0/10000 - 9/100000 - 0/1000000 - ...

And we end up with this:

99x=90

Finally, we divide both sides by 99 in order to isolate x and get the fraction we're looking for.

x=\frac{90}{99}

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x=\frac{10}{11}

Hope this helps!

4 0
3 years ago
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olchik [2.2K]

Answer:

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5 0
3 years ago
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tiny-mole [99]

Answer:

you just need to devide by 2 the second equation

Step-by-step explanation:

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=> x + 2y =16

we can devide or multiply in an equation by any number we want, as long as we do it to every term.

6 0
3 years ago
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