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Mathematics

1 answer:

Karolina [17]4 years ago

6 0

I believe it's 3.75 x 10^5 (Sorry if I'm wrong)

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The perimeter of a movie screen is 54 meters. The screen is 18 meters wide. How tall is it?

Roman55 [17]

Assuming the movie screen is rectangular, the answer would be 8 meters tall. Because the perimeter is 2 times width plus 2 times height, you can subtract 36 (18 times 2) from 54. This leaves you with 18, which is 2 times height. Divide both by two and you get 9

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4 years ago

A bike tire just ran over a nail, and it is losing pressure at a rate of 10% every minute. The tire pressure is currently 1,060

kompoz [17]

Answer:

636 kilopascals

Step-by-step explanation:

4 x 10 is 40

It will lose 40% after 4 minutes

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The answer is 636 kilopascals

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3 years ago

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Michael practiced batting and kept track of his hits. He missed 2 balls but hit 8 balls that were pitched to him. How many balls

Lapatulllka [165]

Answer:

16 balls.....

Step-by-step explanation:

10-2=8

(10-2=8)×2

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2 years ago

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Carol spends 17 hours in a 2-week period practicing her culinary skills. How many hours does she practice in 5 weeks?

yarga [219]

17÷2=8.5 so if you do 8.5×5=42.5. The answer is 42.5 hours in 5 weeks.

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4 years ago

If the angle between each blade of the wind turbine is the same, and each blade has a length of 20 meters, find the distance bet

Ket [755]

A typical windmill has three blades. We can envision these blades in a circle, which a circle = 360 degrees. We want to divide up the angles of the blades so they are even or makes up 360 degrees. We have three blades so we have 3 angles to divide by 360 degrees. So, 360 / 3 = 120 degrees. Now that we know the angle of the blades, we can use the Law of Cos to solve the distance between the blade tip.

Law of Cos

$c^2 = a^2 + b^2 - 2(a)(b)(\cos A)$