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Rudik [331]
2 years ago
7

Find the surface area of the figure. PLEASE HELP!

Mathematics
1 answer:
olya-2409 [2.1K]2 years ago
6 0

Answer:

The total surface area is: 468 in^2  which agrees with answer a)

Step-by-step explanation:

The three lateral faces of the prism are rectangles, and the sums of their areas give:

12 * 10 + 9 * 10 + 15 * 10 = 360 in^2

The area of each triangular base (notice it is a right triangle) is given by:

9 * 12 / 2 = 54 in^2, so we add TWO of these to the three rectangular faces:

Total surface = 360 in^2 + 2 * 54 in^2 = 468 in^2

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Answer:

2x - 2y

Step-by-step explanation:

Multiply by 1

combine like terms

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rearrange terms

Then you should come up with the sloution 2x - 2y

4 0
2 years ago
Bob and Carl each rented the same kind of moving truck from EZ Move. There was a flat rental fee plus a charge per mile that the
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2 years ago
9. A line passes through (2, –1) and (8, 4). a. Write an equation for the line in point-slope form. b. Rewrite the equation in s
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Answer:

Step-by-step explanation:

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y = 5/6x - 8/3

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8 0
2 years ago
Find the slant height of this square pyramid.
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3 years ago
Read 2 more answers
the length of a rectangular sing is 5 time its width. if the sign perimeter is 24 inches. what is the sign area ?
kumpel [21]

Answer:

20 in²

Step-by-step explanation:

Assuming that the width of the sign is x, then from the question, we're told that the length is 5 times it's width, so

b = x inches

l = 5x inches

Again, we're told that the perimeter of the sign is 24 inches, and we know already that the perimeter of a rectangle is given as

Perimeter = 2(l + b), substituting this, we have

24 = 2(5x + x)

24 = 10x + 2x

24 = 12x

x = 24 / 12

x = 2 inches.

Since x is the width of the rectangle, and it's 2 inches, we use it to find the length of the sign.

l = 5 * 2

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A = l * b, so if we substitute, we have

Area = 10 * 2

Area = 20 square inches

8 0
2 years ago
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