2 years ago

What is this I need help don’t mind the room

Mathematics

1 answer:

beks73 [17]2 years ago

3 0

Here’s a picture of my work. The answer is b. Hope this helps :-)

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Selena earned $200 last month babysitting. She used 25 of her earnings to buy a video game. How much did she spend on the video

babymother [125]

Answer:

See below

Step-by-step explanation:

If $25, she spent $25.

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2 years ago

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Step-by-step explanation:

the function of increasing for -2.5 < x < 2.5

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2 years ago

Integrate G(x,y,z)equalsz over the parabolic cylinder yequalszsquared, 0less than or equalsxless than or equals2, 0less than

yKpoI14uk [10]

I gather you're supposed to compute the integral of $G(x,y,z)=z$ over a surface $S$ that is the part of the parabolic cylinder $y=z^2$ with $0\le x\le2$ and $0\le z\le\frac{\sqrt{15}}2$ .

We can parameterize $S$ by

$\vec s(x,z)=x\,\vec\imath+z^2\,\vec\jmath+z\,\vec k$

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$\vec s_x\times\vec s_z=-\vec\jmath+2z\,\vec k$

so that the surface element is

$\mathrm dS=\|\vec s_x\times\vec s_z\|\,\mathrm dx\,\mathrm dz=\sqrt{1+4z^2}\,\mathrm dx\,\mathrm dz$

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3 years ago

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Answer: B 386

Step-by-step explanation:

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= 386

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Elza [17]

Answer:

1 mile =1609 km

Step-by-step explanation:

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