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kogti [31]
3 years ago
13

Justin built a display stand out of two rectangular prisms. The smaller rectangular prism is 2 inches tall, 4 inches wide, and 6

inches long. The larger rectangular prism is 5 inches tall, 8 inches wide, and 10 inches long. He painted the entire outside of each prism before he put the prisms together. What was the total surface area, in square inches, that Justin painted on both rectangular prisms? (
Mathematics
1 answer:
Lady bird [3.3K]3 years ago
5 0

Answer:

428 square inches

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Surface area of a prism: 2wl +2lh+2hw

Where w is the width of the prism; l the length; and h the height.

Replacing with the values given:

S (smaller prism) = 2 (4x6) + 2(6x2)+ 2(2x4)=48+24+16= 88 in2

S (larger prism) = 2 (8x10) +2 (10 x5)+2(5x8)= 160+100+80=340in2

Adding both surface areas:

88+340 =428 in2

Feel free to ask for more if needed or if you did not understand something.  

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Joseph built a sandbox in his backyard that is 2 meters wide, 4 meters long, and 2 meters tall. What volume of sand does he need
Wittaler [7]

Answer: B) 16 cubic meters

Step-by-step explanation:

To find the volume of a rectangular prism like this sandbox, multiply the length, height, and width together. 2*2*4 = 16.

4 0
2 years ago
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Need to find A, B, and C!
gtnhenbr [62]

Answer:

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3 years ago
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Jacob sells his motorbike for £112 making a loss of 12% on its original price. Work out its original price
liq [111]

Answer:

125,44

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4 0
2 years ago
8x+20y=-120 as slope
Temka [501]

Answer:

y = -2/5x -6

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y intercept -6

Step-by-step explanation:

8x+20y=-120

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Subtract 8x from each side

8x -8x+20y= -8x-120

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3 0
3 years ago
Normal form [see attachment]
musickatia [10]

I just did one of these. I guessed that normal form is


x \cos \phi + y \sin \phi -  p = 0


Here' that's


x (\sqrt{3}/2) + y (1/2) - 10 = 0


\sqrt{3} x + y - 20 = 0


Choice b




4 0
3 years ago
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