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Rainbow [258]
3 years ago
11

A cube-shaped item needs to be painted. The item’s edge length is 2 centimeters. What is the total surface area that will be pai

nted? 16 cm² 24 cm² 32 cm² 48 cm²
Mathematics
2 answers:
marysya [2.9K]3 years ago
5 0
For this case, what we must do is find the surface area of the cube.
 By definition, the surface area of a cube is given by:
 A = 6L ^ 2

 Where,
 L: length of the sides of the cube.
 Substituting values we have:
 A = 6 (2) ^ 2

A = 6 (4)

A = 24 cm ^ 2
 Answer:
 
The total surface area that will be painted is:
 
24 cm²
zmey [24]3 years ago
5 0

Answer: A) 24

Hope This Helps ^_^

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1/8 is half of 1/4

Step-by-step explanation:

1/8 + 1/8 = 1/4

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1/2 x-12=4<br> Whats the linear equation
dsp73

Answer:

<em>There is no y value so I think you mean to solve for x</em>

<em>Here's how we do it!: </em>

<em>1/2(x-12) = 4</em>

<em>Add 12...</em>

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<em>Divide by 1/2...</em>

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3 years ago
A rectangle has a perimeter of 44 inches and an area of 72 square inches. What are the lengths of the sides of the rectangle?
kondor19780726 [428]
  • A rectangle has a perimeter of 44 inches and an area of 72 square inches.
  • Perimeter = 44 inches, area = 72 square inches.
  • Let the length and breadth be l and b respectively.
  • We know, perimeter of a rectangle = 2(l + b)
  • Therefore,
  • 2(l + b) = 44

or, l + b = 22

or, b = 22 - l ...(i)

  • We know, area of a rectangle = lb
  • Therefore,
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  • Putting (i) in b, we get
  • l(22 - l) = 72

or, 22l - l^2 -72 = 0

or, l^2 - 22l + 72 = 0

or, l^2 - 4l - 18l + 72 = 0

or, l(l - 4) - 18(l - 4) = 0

or, (l - 4)(l - 18) = 0

or, l = 4 or l = 18

  • Therefore, if the length is 4 inches, then the breadth is (22-4) inches, i.e., 18 inches.
  • And if the length is 18 inches, then the breadth is (22-18) inches, i.e., 4 inches.

<u>Answer:</u>

<u>B)</u><u> </u><em><u>4</u></em><em><u> </u></em><em><u>inches </u></em><em><u>and </u></em><em><u>1</u></em><em><u>8</u></em><em><u> </u></em><em><u>inches.</u></em>

Hope you could get an idea from here.

Doubt clarification - use comment section.

5 0
2 years ago
ALL HELP IS GREATLY APPRECIATED !!
ss7ja [257]

I think the answer is b -3, however I’m not entirely sure

6 0
3 years ago
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yes , all constant are like terms.

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