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Valentin [98]
3 years ago
8

What is the surface area of the rectangular prism below?

Mathematics
2 answers:
romanna [79]3 years ago
7 0

Answer:

64 cm^2

Step-by-step explanation:

surface area formula: 2(lw+wh+lh)

2(4*4+4*2+4*2)

2(16+8+8)

2(32)

64 cm^2

Irina-Kira [14]3 years ago
7 0

Answer:

SA= 64cm^2

Step-by-step explanation:

There are 4 rectangles with dimensions 2 and 4, and 2 rectangles with dimensions 4 and 4

4(2x4)+2(4x4)=64cm^2

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Evaluate<br> 4(x+5)(2+1)<br> (2+3)(2-3)<br> for x = 5.
zaharov [31]

Answer:

-600

Step-by-step explanation:

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20 POINTS! Please help, best answer will recessive brainliest answer points as well as 5 stars and a thank you. :)
Kaylis [27]

Answer:

13

Step-by-step explanation:

Diagonals of a rhombus are perpendicular bisector.

Hence, triangle ABE so formed would be a right triangle right angled at E.

Therefore, by Pythagoras theorem:

AB =  \sqrt{AE^2 + BE^2 }  \\  \\  \therefore \: AB =  \sqrt{5^2 + 12^2 }  \\  \\  =  \sqrt{25 + 144}  \\  \\  =  \sqrt{169}  \\  \huge \red { \boxed{ \therefore \: AB= 13}}

8 0
3 years ago
*Mastery Check. DO NOT ask for help. Find the area of the sector. Round your answer to the nearest tenth.
Juliette [100K]

The area of the sector is 472.6 ft²

<h3>Area of a Sector</h3>

For finding the area of the sector, you need apply the formula:

A=\pi r^2* \frac{\alpha }{360}, where:

r= radius

α= central angle

The question gives:

r= radius= 19 ft

α= central angle = 150°

Thus, the area of the sector will be:

A=\pi r^2* \frac{\alpha }{360}=\pi *19^2*\frac{150}{360} =472.6

Read more about the area of a sector here:

brainly.com/question/22972014

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3 0
2 years ago
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