3 years ago

7x+3y=8 6x-3y=5 what is the value of x-y? PLEASE HELP & FAST!

1 answer:

Brut [27]3 years ago

3 0

X=7
y= -9

hope this helps

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vitfil [10]

Answer: $9\pi \ in.^2$

Step-by-step explanation:

Given

The height of the cylinder is $h=7\ in.$

The volume of the cylinder is $V=63\pi \ in.^3$

The volume of the cylinder is the product of area and height

$\Rightarrow V=\pi r^2h\\$

Insert the values

$\Rightarrow 63\pi =A\times 7\\\\\Rightarrow A=\dfrac{63\pi}{7}\\\\\Rightarrow A=9\pi\ in.^2$

Thus, the area of the cross-section is $9\pi \ in.^2$

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Galina-37 [17]

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timofeeve [1]

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Step-by-step explanation:

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aalyn [17]

5 3/7 .. do you need to show your work?

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