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iragen [17]
2 years ago
11

Please help with this?

Mathematics
1 answer:
Semmy [17]2 years ago
4 0

Answer: Subtract 3 from each side of the equation(A)

Step-by-step explanation:

3n2−15n=3

1:Subtract 3n2 from both sides.

-15n=3-3n2

2:Divide both sides by -15.

-15n/-15=3-3n2/-15

3:Dividing by −15 undoes the multiplication by −15.

n=3-3n2/-15

4:Divide 3−3n 2 ​ by −15

n=n2-1/5

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<h3>What is the surface area of a cube?</h3>

Surface area of cube is the sum of the area of each face by which it is enclosed. The surface area of cube can be calculated with the following formula;

A=6a^2

Here, (<em>a</em>) is the length of side of the cube.

You want to stain the lateral faces of the wooden chest shown. Find the area that you want to stain in square inches.

A cube-shaped wooden chest with side edges of 4 feet. Thus the surface area of it is,

A=6a^2\\A=6(4)^2\\A=96\rm\; ft^2

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2 years ago
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Step-by-step explanation:

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3 years ago
Within 3 hours, the temperature in Oceanside falls by 8 degrees. If the temperature is now at 67 degrees Fahrenheit, what was th
mrs_skeptik [129]

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Step-by-step explanation:

Given

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7 0
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Answer:

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7 0
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