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Sphinxa [80]
3 years ago
10

What percent of 80 is 2 and a half

Mathematics
2 answers:
Ivenika [448]3 years ago
6 0

Answer:

3.13

Step-by-step explanation:

goblinko [34]3 years ago
4 0
3.13% I think I’m not sure but I hope it helps
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Write the expression (−2)·(−2)·7·7·7·7·7 using exponents.
NeTakaya

Answer:(-2)^{2}*7^{5}

Step-by-step explanation:

You have to group all of the same one's together and however many there is, you add that number as the exponent.

There were 2 "(-2)" so that became (-2)^{2}, and there were 5 "7" so that became 7^{5}. You keep the symbol and put it together which became (-2)^{2}*7^{5}

5 0
3 years ago
Calculus. Find the area.
matrenka [14]

Answer:

8/3 square units.

Step-by-step explanation:

First, visualize the area. You can refer to the attachment below.

To find the area then, we will integrate y from x = 0 to x = 2. Therefore:

\displaystyle A=\int_0^2x^2\, dx

Integrate:

\displaystyle A=\frac{1}{3}x^3\Big|_{0}^2

Evaluate:

\displaystyle A=\frac{1}{3}[2^3-0^3]=\frac{1}{3}(8)=\frac{8}{3}

The area is 8/3 square units.

6 0
3 years ago
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astraxan [27]

Step-by-step explanation:

17) 3x+5-12+4x+2x

3x+4x+2x +5-12

8x-7

if x =6

8*6-7 =48-7

= 41

18.) 9(3x-4y+8)

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3 years ago
Rewrite the equation in logarithmic form: 2³= 8
GrogVix [38]

Explanation: The base of the power in the original equation becomes the base of the log. So we have ^{log}2. Next, the exponent in the original equation goes on the other side of the equation and finally, the result in the original equation goes inside the log.

So we have ^{log} 2 8 = 3 which is 2³ = 8 written in logarithmic form.

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3 years ago
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Which graph represents the solution to the system of equations below?
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C. -4,-5 hope this helps :)
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