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Agata [3.3K]
2 years ago
6

Maybe a little more point will make you help me

Mathematics
2 answers:
Natasha_Volkova [10]2 years ago
5 0

Answer:

SA = 76 yd²

Step-by-step explanation:

Use the formula given:

  • SA = 2(4)(2) + 2(4)(5) + 2(2)(5)
  • SA = 16 + 40 + 20
  • SA = 76

The units are yards²

SA = 76yd²

-Chetan K

mezya [45]2 years ago
4 0

Answer:

76yd²

Step-by-step explanation:

Solution,\\\\Here,\\\\Length(l)=4yd\\\\Width(w)=2yd\\\\Height(h)=5yd\\\\Now,\\\\S.Area=2(lw+lh+wh)\\\\S.Area=2(4yd*2yd+4yd*5yd+2yd*5yd)\\\\S.Area=2(8yd^{2} +20yd^{2} +10yd^{2} )\\\\S.Area=2(38yd^{2} )\\\\S.Area=76yd^{2}

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3 years ago
Ben made a model (shown below) of the square pyramid he plans to build when he grows up.
elena-s [515]

Answer:

336 m^2

Step-by-step explanation:

The surface area of a square pyramid is the sum of the area of the squared base + 4 times the area of each triangular face, therefore:

A=A_b + 4A_t

where:

A_b=L^2 is the area of the base, where

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Substituting,

A=L^2+2Lh

For the model in this problem,

L = 12

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Therefore, the surface area here is:

A=12^2 +2(12)(8)=336

4 0
3 years ago
Read 2 more answers
4. Sandra has 35% of the money she needs. She has $105. How much more money does she need? Write the equation and solve.​
guajiro [1.7K]

Answer:

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Step-by-step explanation:

First is turn the percent into a decimal which would be 0.35.

Then multiply 0.35 with 105

Finally this would equal to 36.75

Note: Hope I got it right, if I didn't I am very sorry this is all I can really do. If I did get it wrong please comment and I'll try again.

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3 years ago
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Bogdan [553]

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