3 years ago

(Please someone help me!) (NO links!)Please hurry! I need to get this done fast!

Mathematics

1 answer:

victus00 [196]3 years ago

3 0

Answer:

B1: 3

B2: 3

B3: 6

B4: +5

B5: +5

B6: 11

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The equation x= -7y^2 describes a parabola. Which way does the parabola open?

Nutka1998 [239]

Answer:

Downwards

Step-by-step explanation:

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2 years ago

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:

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

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

Can someone check my answer? Is it B? Thanks!

zloy xaker [14]

Solution is where the 2 lines intersect

I would say the answer is 3rd option, whre both lines pass through that point

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3 years ago

Read 2 more answers

after typing 1/4 of a term paper on Friday, Richard completed 2/3 of the remainder on Saturday. If he wanted to finish the paper

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Hope you can read my handwriting.

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4 years ago

Please help me branniest

maxonik [38]

The answer is option A

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3 years ago