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garri49 [273]
2 years ago
13

What is the surface area of the triangular prism?

Mathematics
1 answer:
I am Lyosha [343]2 years ago
6 0

The surface area of the triangular prism is 135 feet squared

<h3>How to find the surface area of a triangular prism?</h3>

The surface area of a triangular prism is the sum of the area of the whole faces.

Therefore, it has 3 rectangular faces and two triangular faces

area of triangle = 1 / 2 bh

where

  • b = base
  • h = height

Therefore,

area of the triangle = 1 / 2 × 2.5 × 6 = 7.5 ft²

area of rectangle = lw

where

  • l = length
  • w = width

Therefore,

area of rectangle 1 = 8 × 2.5 = 20 ft²

area of rectangle 2 = 8 × 6 = 48 ft²

area of rectangle 3 = 8 × 6.5 = 52 ft²

Therefore,

surface area = 7.5 + 7.5 + 20 + 48 + 52 = 135 ft²

learn more on surface area here here: brainly.com/question/14594657

#SPJ1

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Suppose the probability of an irs audit is 2.8 percent for U.S. taxpayers who file form 1040 and who earn 100,000 or more. What
stiks02 [169]

Answer:

So, the odds that a taxpayer would be audited 28 to 972 or 2.88%

Step-by-step explanation:

Given

Let P(A) = Probability of irs auditing

P(A) = 2.8%

Let n = number of those who earn above 100,000

To get the odds that taxpayer would be audited, we need to first calculated the proportion of those that will be audited and those that won't.

If the probability is 2.8% then 2.8 out of 100 will be audited. That doesn't make a lot of sense since you can't have 2.8 people; we multiply the by 10/10

i.e.

Proportion, P = 2.8/100 * 10/10

P = 28/1000

The proportion of those that would not be audited is calculated as follows;

Q = 1000 - P

By substituton

Q = 1000 - 28

Q = 972

So, the odds that a taxpayer would be audited 28 to 972 or P/Q

P/Q = 28/972

= 0.0288065844

= 2.88% --- Approximately

3 0
3 years ago
22 out of the 55 teachers in a
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Answer:

40%

Step-by-step explanation:

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A rectangular solid has sides of 7 cm + 9 cm + 11 cm what<br> is its surface area
alina1380 [7]

Your answer would be: <em>693.</em>

Explanation:

When finding the area in a problem use <em>L×W×H</em>.

That being said, you now have to multiply the <em>L×W×H</em> (7x9x11)

7 × 9 × 11 = <em>693</em>

So the answer would be <em>693</em> because, if you are finding an area you use <em>L×W×H</em> to find your area.


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