3 years ago

How many places do you need to move the decimal to the left to write the number below in scientific notation? 1,200,000,000

1 answer:

5 0

1.2 * 10 (9)
You need to move it 9 places to the left

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Svetllana [295]

Answer:

1 tree every 45 mins

Step-by-step explanation:

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2 years ago

Westkost [7]

I believe that the answer is B

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2 years ago

photoshop1234 [79]

Substitute $u=x^2+4$ and $du=2x\,dx$ . Then the integral transforms to

$\displaystyle \int \frac{x\,dx}{(x^2+4)^3} = \frac12 \int \frac{du}{u^3}$

Apply the power rule.

$\displaystyle \int \frac{du}{u^3} = -\dfrac1{2u^2} + C$

Now put the result back in terms of $x$ .

$\displaystyle \int \frac{x\,dx}{(x^2+4)^3} = \frac12 \left(-\dfrac1{2u^2} + C\right) = -\dfrac1{4u^2} + C = \boxed{-\dfrac1{4(x^2+4)^2} + C}$

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2 years ago

Vikki [24]

78.26

Hope this helps!!!

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3 years ago

Daniel [21]

Step-by-step explanation:

5/10+2/10

7/10

0.7

................

4 0

3 years ago