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rosijanka [135]
2 years ago
12

Estimate: 19 + 17.77 = 37 B 31 35 D 41

Mathematics
1 answer:
Natali [406]2 years ago
4 0

Answer:

Step-by-step explanation:

Option A 37 is the correct answer

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4. Find the surface area of a triangular prism with height 30 inches, and a right triangle base with side lengths 15 inches and
saveliy_v [14]

Answer:

The answer would be B.2100

Step-by-step explanation:

To find the surface area of a triangular prism, first find the lateral area. The lateral area is the product of the perimeter of the base and the height. The perimeter of the base is 15 in.+20 in.+25 in.=60 in., so the lateral area is 60 in.⋅30 in.=1800 in.2. The surface area of any prism is the lateral area plus the base area. Because each base is a right triangle, the area of each base is 12bh. Because the legs of the right triangle are perpendicular, you can use one of them as the base and one as the height. So, the base area is 12⋅20 in.⋅15 in.=150 in.2. There are two bases, so the surface area is 1800 in.2+150 in.2+150 in.2=2100 in.2.

8 0
3 years ago
What is eight more than one fourth of d
adoni [48]

Answer:

1/4d+8.

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Step-by-step explanation:


3 0
3 years ago
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Find the probability that you roll the same number twice in a row when you toss two fair 6-sided dice.
marysya [2.9K]

Answer: 6/36

Step-by-step explanation:

When tossing two number cubes, you can get such sample space

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)

(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)

(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)

(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)

(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)

There are 36 possible outcomes. Only (1,1), (2,2), (3,3), (4,4), (5,5), and (6,6) use the same number twice.

Hence, the probability that you roll two numbers that are the same in a row is 6/36, or in simplified form, 1/6.

Hope that helps! :)

8 0
2 years ago
A painter used 2 1/2 gallons of paint to paint 1/3 of a room. At this same rate, how many gallons will it take to paint the whol
Anna71 [15]

Answer:

7 1/2

Step-by-step explanation:

I have no idea how to solve it I just guessed and got it right lol

6 0
2 years ago
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Ierofanga [76]

Answer:

not much

Step-by-step explanation:

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