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Mice21 [21]
3 years ago
5

Helena wants to paint a box in the shape of a cube with sides that are 18 inches long. what is the surface area that Helena will

paint?
Mathematics
1 answer:
yan [13]3 years ago
5 0

Answer:

1944 Inches Squared

Step-by-step explanation:

Surface area Formula for a Cube:

A = 6a^2

The "edge", which is also the side, is 18 inches.

a = 18

Solve the formula.

A= 6a^2 = 6(18)^2 = 6 * 18^2\\18^2 = 324\\324 * 6 = 1944\\A=1944

The cube's surface area should be 1944 square inches.

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Solve the equation for W and L
Roman55 [17]

Answer:

Step-by-step explanation:

Cross multiply and get:

\sqrt{7}L = 5w

L = 5w/\sqrt{7}

W = \sqrt{7}L/5

4 0
3 years ago
Giving brainly if you do all :) very easy​
NeX [460]

Answer:

Step-by-step explanation:

<u><em>h. -1</em></u>

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8 0
2 years ago
HELP!! I wasn't in class today and I wasn't able to get the answers to this sheet. Anybody have any idea what the answers are?
dusya [7]

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idk but you can ask your teacher for help

4 0
2 years ago
If f(x) = 16x – 30 and g(x) = 14x – 6, for which value of x does (f – g)(x) = 0?
andre [41]

The value of the x will be 12. The value of the x is obtained from the condition,(f – g)(x) = 0

<h3>What exactly is a function?</h3>

A function is a statement, rule, or law that specifies the connection between two variables. Functions are common in mathematics and are required for the formulation of physical connections.

Given function;

f(x) = 16x – 30

g(x) = 14x – 6

⇒(f – g)(x) = 0

⇒(16x – 30)-(14x – 6)=0

⇒16x-30-14x+6=0

⇒2x-24=0

⇒x=24/2

⇒x=12

Hence, the value of the x will be 12.

To learn more about the function, refer to:

brainly.com/question/5245372

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8 0
1 year ago
Pls help <br> I need to check my answer
professor190 [17]

Answer:

Yeah I think you right

5 0
2 years ago
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