3 years ago

What is the area of 3/4 foot and 16 feet?

Mathematics

1 answer:

solong [7]3 years ago

4 0

You do 3/4 * 16 because that is how you calculate area.

3/4 * 16
12

Answer: 12 feet squared

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Triss [41]

you have negative -12

turn this into a positive (12)

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3 years ago

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erastovalidia [21]

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Step-by-step explanation: Hope this help :D

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Which equation can be used to find the surface area of the cylinder?

ki77a [65]

Step-by-step explanation:

Surface Area of the Cylinder

= 2πr² + 2πrh

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3 years ago

A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at points B an

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Answer: 70 meters.

Step-by-step explanation:

Observe the figure attached.

The distance between the walls is:

$DE=AD+AE$

Both triangles are right triangles. Therefore, you can calculate the distance between the walls as following:

- Calculate the distance AD:

$cos\alpha=\frac{adjacent}{hypotenuse}\\\\cos(60\°)=\frac{AD}{60}\\AD=30m$

- Calculate the distance AE:

$tan\beta =\frac{opposite}{adjacent}\\\\tan(45\°)=\frac{40}{AE}\\\\AE=\frac{40}{tan(45\°)}\\\\AE=40m$

Therefore the distance between the walls is:

$DE=30m+40m=70m$

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3 years ago

Read 2 more answers

What is the surface area of the prism below 2.5 m 2 m 10 m 1.5 m

Kipish [7]

Answer:

5 by 11

Step-by-step explanation:

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