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sveta [45]
3 years ago
14

Please do all of them correct and quick I will mark brainliest and 10 points ty pls I’m on a time limit

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
7 0

1: 9pi

2. 18

3. 12pi

4. 672

5. 23.94

6. 10 3/4

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alex41 [277]

Answer:\frac{8}{3}\times \sqrt{\frac{2}{5}}

Step-by-step explanation:

Given two upward facing parabolas  with equations

y=6x^2 & y=x^2+2

The two intersect at

6x^2=x^2+2

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x=\pm \sqrt{\frac{2}{5}}

area  enclosed by them is given by

A=\int_{-\sqrt{\frac{2}{5}}}^{\sqrt{\frac{2}{5}}}\left [ \left ( x^2+2\right )-\left ( 6x^2\right ) \right ]dx

A=\int_{\sqrt{-\frac{2}{5}}}^{\sqrt{\frac{2}{5}}}\left ( 2-5x^2\right )dx

A=4\left [ \sqrt{\frac{2}{5}} \right ]-\frac{5}{3}\left [ \left ( \frac{2}{5}\right )^\frac{3}{2}-\left ( -\frac{2}{5}\right )^\frac{3}{2} \right ]

A=\frac{8}{3}\times \sqrt{\frac{2}{5}}

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3 years ago
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patriot [66]

1457.50 dollars or 1458 dollars rounded


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3 years ago
Will mark Brainlest Help please<br>If a:b =4:5 then find the duplicate value of a:b<br>​
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4 0
3 years ago
Read 2 more answers
Solve for w.<br> -3(-8w+1) -w=5(w-1)-1<br> Simplify your answer as much as possible.<br> W =
oksian1 [2.3K]

Answer:

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w = 18/-3 which is - 6 -> (Doing 18/-3)

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