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lana66690 [7]
3 years ago
10

Check out this rectangular prism. Find the surface area of the rectangle prism (above)) using its net (below)

Mathematics
1 answer:
Xelga [282]3 years ago
7 0

Answer:

48

Step-by-step explanation:

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A square pyramid has a height of 25 ft and each side of the base has a length of 15 ft.
Naya [18.7K]

Answer:

Surface area of square pyramid is computed as follows:

A = a² + a*√(a² + 4h²)

where <em>a</em> is the base length and <em>h</em> is the height.

If a model of the square pyramid is scaled down by a factor of x, then the surface area will be:

A' = (a/x)² + (a/x)*√[(a/x)² + 4(h/x)²]

A' = a²/x² + a/x * √[a²/x² + 4h²/x²]

A' = a²/x² + a/x * √[(a² + 4h²)/x²]

A' = a²/x² + a/x * √(a² + 4h²)/√x²

A' = a²/x² + a/x² * √(a² + 4h²)

A' = 1/x² * [a² + a*√(a² + 4h²)]

A' = 1/x² * A

That is, the surface area will be 1/x² times the original surface area. If h = 25 ft and a = 15 ft:

A = 15² + 15*√(15² + 4(25)²) =  1008.02 ft²

The factor is not mentioned in the question, nevertheless, the area will be  1008.02/factor² ft²

3 0
3 years ago
Which is the expanded form of 879?
Sloan [31]

Answer:

800+70+9 OR 8x100+7x10+9x1

Step-by-step explanation:

4 0
3 years ago
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Explain how to estimate 524 divide 9
IgorC [24]
Once Youu Divide It Youu Go 524/9=58.222222... A lot Of 2's..
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6 0
3 years ago
Toby wants to find the volume of a solid toy soldier.
mr Goodwill [35]

Answer:

Toby wants to find the volume of a solid toy soldier.He fills a rectangular container 8 cm long, 6 cm wide,and 10 cm high with water to a depth of 4 cm. Toby totally submerges the toy soldier in the water. The height of the water with the submerged toy soldier is 6.6 cm. Which of the following is closest to the volume, in cubic centimeters, of the toy soldier?

A. 125 B. 156 C. 192 D. 208 E.317

The volume of the toy is 125 cubic cm ,option A is the closest answer.

Step-by-step explanation:

Given:

A rectangular container .

Length of the container =8 cm

Width of the container = 6 cm  

Height of the container when water is filled = (h_1) = 4 cm

Height of the container when the toy is submerged = (h_2) =6.6 cm

Volume of the toy =  Volume of the container with the toy - Volume of the container (with water)

Volume of the toy = (l\times b\times h_2) - (l\times b\times h_1)

                              = (l\times b\times)(h_2-h1)

                              = (6\times 8)(6.6-4)

                              = 48\times 2.6

                              = 124.8 cubic centimeters.

So,the closest value to the volume of the toy is 125 cubic centimeters.

6 0
3 years ago
Ordinary quarters and a fake quarter with two heads are placed in a hat. One-quarter is selected at random and tossed twice. If
motikmotik
How many quarters of each are there?
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3 years ago
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