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rjkz [21]
3 years ago
6

Find the TSA for the trapezoidal prism

Mathematics
1 answer:
8090 [49]3 years ago
4 0

Answer:

TAS = 43.99 m²

Step-by-step explanation:

  • TSA = total surface area
  • Area of a trapezoid = (1/2)(a + b)h
    (where a and b are the parallel sides and h is the height)
  • Area of a rectangle = width x length

This prism is made up of 4 rectangles and 2 congruent trapezoids.

Area of trapezoid = (1/2) x (1.4 + 2.3) x 1.9 = 3.515 m²

⇒ area of 2 trapezoids = 3.515 x 2 = 7.03 m²

Area of base rectangle = 2.3 x 4.8 = 11.04 m²

Area of top rectangle = 1.4 x 4.8 = 6.72 m²

Area of back rectangle = 1.9 x 4.8 = 9.12 m²

Area of sloped rectangle = 2.1 x 4.8 = 10.08 m²

Total surface area = 7.03 + 11.04 + 6.72 + 9.12 + 10.08 = 43.99 m²

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A truck uses 1 tablespoon of gasoline to drive 125 yards. How many miles can the vehicle travel per gallon?
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Answer:

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Step-by-step explanation:

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8 0
4 years ago
In the third quarter of 2001, the median sale price for a single-family
snow_tiger [21]

Answer:

The % increase is 7.179 but see the remark I made below. What I have given and what it could be is a rounding error. Less than 2 dollars error is not much when you are calculating something for someone just to show them how to do it.

Step-by-step explanation:

242,555 * x/100 = 259,970           Multiply by 100

242,555 * x = 259970 * 100

242,555 * x = 25997000            Divide by 242555

x = 24997000/242444

x = 107.179

That's the total increase.

What you want is 7.179%

If you take 7.179% of 242,555 and add it onto 242555 you should get 259,970

7.1797/100 * 242555 = 17413.02

17413.02 + 242555 = 259968.02

Why isn't it exact. I'm out just about 2 whole dollars. The reason is that the % isn't exact. It's only out to 3 decimal places which apparently is not enough. You can go over my numbers if you want more exactness us use something that is rounded to 7.180 if you like.

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3 years ago
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The way you can get this answer you can use the calculater
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4 years ago
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