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2 years ago

What is the volume, in cubic cm, of a cube with an edge length of 20cm?

Mathematics

1 answer:

kolezko [41]2 years ago

4 0

Answer:

Isn't it 8000 cubic cm sorry if it's wrong

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Find the distance between points M and N M= (3,-2) N= (5,-6)

Olin [163]

Answer:

$MN = \sqrt{(5-3)^{2}+(-6-(-2))^{2} } = \sqrt{2^{2}+(-4)^{2} } = \sqrt{20} = 2\sqrt{5}$

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3 years ago

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Find the area of a circle with a radius of 7 feet

-Dominant- [34]

Answer:

153.938 ft²

Step-by-step explanation:

πr² (area of a circle where r is the radius

π(7)²

π(49)

π(49)≈153.938

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3 years ago

Find x and y, given that KL and line MN are parallel. Show all work

Setler [38]

$\dfrac{|MN|}{|NJ|}=\dfrac{|KL|}{|LJ|}\\\\\dfrac{22}{12+8}=\dfrac{y}{8}\\\\\dfrac{22}{20}=\dfrac{y}{8}\ \ \ |cross\ multiply\\\\20y=22\cdot8\\\\20y=176\ \ \ |:20\\\\\boxed{y=8.8}$

$\dfrac{|MK|}{|KJ|}=\dfrac{|NL|}{|LJ|}\\\\\dfrac{x-2}{5}=\dfrac{12}{8}\ \ \ \ |cross\ multiply\\\\8(x-2)=5\cdot12\\\\8x-16=60\ \ \ |+16\\\\8x=76\ \ \ |:8\\\\\boxed{x=9.5}$

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2 years ago

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A)-124 B)-18 C)-36 D)-96

Artemon [7]

Answer:

It's Either B Or D

Step-by-step explanation:

only because They Only number that are closer so you can reverse it is 18 or 96

5 0

3 years ago

What is 4.3(v+2.5)=8.11+4v

True [87]

Answer:

-8.8

Step-by-step explanation:

We begin by simplifying the parenthesis through multiplication. Parenthesis is a structure which signals multiplication happening.

$4.3(v+2.5)=8.11+4v\\4.3v+10.75=8.11+4v$

We now begin combining like terms across the equal sign by performing the inverse or doing the opposite. Move first the 8.11 by subtracting it from both sides.

$4.3v+10.75-8.11=8.11-8.11+4v\\4.3v+2.64=4v$

Now, move 4.3v across by subtracting it from both sides.

$4.3v-4.3v+2.64=4v-4.3v$

$2.64=-0.3v$

Finally, we divide both sides by the coefficient of v.

$\frac{2.64}{-0.3} =\frac{-0.3v}{-0.3} \\-8.8=v$

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3 years ago