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castortr0y [4]
3 years ago
5

What is the surface area of a cube with a side of length 14 meters?

Mathematics
1 answer:
prisoha [69]3 years ago
3 0
SA = 6a^2

Where 'a' is the side length.

Plug in what we know:

SA = 6(14)^2

Simplify the exponent:

SA = 6(196)

Multiply:

SA = 1176
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Answer:

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3 years ago
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Solve the following equation:<br> a) 3x - 9 = 27/ 1 - 5x<br> b) 10x - 1/x = 3
mars1129 [50]

Answer:

A) x=9/2 B) x=-1/5, 1/2

Step-by-step explanation:

3x-9=27/1-5x

3x-9=27-5x

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8x=36

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simplify

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Answer: x=9/2

-----------------------------

10x-1/x=3

(10x^2-1)/x=3

10x^2-1=3*x

10x^2-1=3x

10x^2-3x-1=0

factor out the trinomial,

find two numbers that when they multiply,

you get the third term, which is -1 in this case.

When you add those 2 numbers, you get the second term,

which is -3 in this case.

(5x+1)(2x-1)=0

apply the zero property from here,

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5x=0-1=-1, x=-1/5,

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5 0
3 years ago
Solve this system of equations by
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Answer: x = 12 and y = -8

Explanation:
x + y = 4
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———————
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4x + 3y = 24
———————-
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4x + 3y = 24
———————
x = 12

If x = 12
x + y = 4
12 + y = 4
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2 years ago
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Answer:

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Step-by-step explanation:

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If Dave drove one-third of the distance of his trip on the first day, and 60 miles on the second day, he figured out that he sti
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