2 years ago

What is Variable for m+3=-m -1

Mathematics

1 answer:

CaHeK987 [17]2 years ago

3 0

You’re answer should be m= -2

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15% of a mass is 45 g. Calculate 20% of the mass

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What is 100% of the mass ?

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Integrate x+1/sqrt(x). I know that the answer is 2/3 • sqrt(x) • (x+3) + C, but I don't know how it is simplified from 2/3 • x^3

Andreas93 [3]

$\displaystyle\int\frac{x+1}{\sqrt x}\,\mathrm dx=\int\frac x{x^{1/2}}+\frac1{x^{1/2}}\,\mathrm dx$

$=\displaystyle\int x^{1/2}+x^{-1/2}\,\mathrm dx$

By the power rule,

$=\dfrac{x^{3/2}}{\frac32}+\dfrac{x^{1/2}}{\frac12}+C$

(this seems to be the step you're not getting?)

$=\dfrac23x^{3/2}+2x^{1/2}+C$

The next step is to pull out a common factor of $x^{1/2}$ from the antiderivative:

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so that the final result is

$\dfrac23x^{3/2}+2x^{1/2}+C=\dfrac23x^{1/2}(x+3)+C$

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3 years ago

The bottom of the ladder on a horizontal flat surface rests against a wall. It makes an angle of elevation of 39°. The bottom of

rewona [7]

Cosα=x/L

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L=48/cos39 ft

L≈61.76 ft (to nearest hundredth of a foot)

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2 years ago

Can someone else me with the answer I think that it’s 93 degrees

inna [77]

Thank you for coming to Brainly with your questions!

I believe the answer is:

93 degrees. You were correct. The interior angles all add up to 360, so you subtract each given angle to find the missing angle.

I hope this helps you! Please mark Brainliest! Let me know if I can help you with any further questions!

-Belle

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If any one answer this question i will give them brainliest

frozen [14]

Answer:

x =9

Step-by-step explanation:

-5x = -45

Divide both sides by -5:

x = 9

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