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1 year ago

The ratio of the areas of two similar

Mathematics

1 answer:

Sergeu [11.5K]1 year ago

6 0

Answer:

The base length of the larger parallelogram is 112 centimeters

Step-by-step explanation:

Since the ratio is 4:1, we multiply the length of the smaller base (28), by 4 to find the length of the larger base.

4 x 28 is 112.

Hope this helped!

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Dequan is training for a marathon. He runs 20 miles every 4 days. What is the unit rate for Dequan?

KonstantinChe [14]

Answer:

Dequan walks 5 miles per day.

Step-by-step explanation:

So solve this problem, we just need to divide 20 miles by 4 days.

20 ÷ 4 = 5

Therefore, Dequan walks 5 miles per day.

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2 years ago

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3 years ago

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dsp73

Answer:

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Step-by-step explanation:

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cos z = (adj. side) / (hypotenuse)

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2 years ago

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2 years ago

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Zach wants to build a slanted skateboard ramp. He knows he wants the ramp to form a 15 degrees angle with the ground and be 4 fe

Fynjy0 [20]

Answer: The ramp would be 15.5 feet long.

Step-by-step explanation: Please refer to the attached diagram for details.

Angle C shows the angle to be formed by the ramp from the ground, which is 15 degrees. Also, from the ground, it’s going to be four feet tall, which is line AB. The top of the ramp is point A, which makes line AC the entire length of the ramp. Since we have a reference angle (angle C) and two sides, the opposite and the hypotenuse, we shall apply the trigonometric ratio.

SinC = opposite/hypotenuse

Sin 15 = 4/b

By cross multiplication we now have

b = 4/Sin15

b = 4/0.2588

b = 15.4599

Approximately b = 15.5

Therefore the length of the ramp would be 15.5 feet

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2 years ago