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ikadub [295]
3 years ago
11

If f(x)=3x+1 and g(x)=1x what is the value of (f-g)(2)

Mathematics
1 answer:
Lyrx [107]3 years ago
6 0

f(x) 3x+1

g(x) 1x

f(1x) = 3(1x)+1

f = 3x+1

g(3x+1) = 1(3x+1)

g = 3x+1

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What is the difference in the surface area of two cubes, one with edge 15 and one with an edge of 12
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Remark

A cube has six sides, all of them equal. The formula for 1 side is s^2. The formula for all six = 6s^2.


Step One

Find the surface area of the larger cube.

Area = 6 *s^2

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Area = 6 *15^2

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Step Two

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Area = 6 * 12^2

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Step Three

Find the difference

Area1 - Area2 = difference

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The difference is area = 486 units^2 <<<<< Answer


There is a slightly shorter way. Take out the common factor of 6

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Difference = 6 * (81)

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