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3 years ago

10

3 people can build a shed in 8 hours how long would it take 5 people

1 answer:

harkovskaia [24]3 years ago

8 0

Answer:

3howers

Step-by-step explanation:

Step-by-step exaplanation

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A construction crew is lengthening a road. The road started with a length of 54 miles, and the crew is adding 3 miles to the roa

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53 +114 = L

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3 years ago

The area of a rectangular pool is 6992 m².

Nina [5.8K]

Step-by-step explanation:

area=6992m2

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3 years ago

A furniture designer builds a trapezoidal desk with a semicircular cutout. What is the area of the desk?

nirvana33 [79]

Answer:

$Area = 26478cm^2$

Step-by-step explanation:

Given

See attachment for desk

Required

The area

First, calculate the area of the semicircular cutout

$Area = \frac{\pi r^2}{2}$

Where

$r = 60cm$

So:

$A_1 = \frac{3.14 * 60^2}{2}$

$A_1 = \frac{11304}{2}$

$A_1 = 5652cm^2$

Next, the area of the complete trapezium

$Area= \frac{1}{2}(a + b) * h$

Where

$a = 300$

$b = 2 * r = 2 * 60 = 120$

$h = 153$

So:

$A_2 = \frac{1}{2} * (300 + 120) * 153$

$A_2 = \frac{1}{2} * 420 * 153$

$A_2 = 32130cm^2$

The area of the desk is:

$Area = A_2 - A_1$

$Area = 32130cm^2 - 5652cm^2$

$Area = 26478cm^2$

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3 years ago

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Step-by-step explanation:

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3 years ago