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antoniya [11.8K]

3 years ago

12

Help plz...............

1 answer:

Charra [1.4K]3 years ago

3 0

Step-by-step explanation:

2πr

2x 3.14 x 8.1 = 50.22in

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Step-by-step explanation:

6 is x. side across from right angle (12) is 2x. so 6x2 to get 12. missing side is x√3. so 6√3

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Jayden filled his 290 gallon pool with water in 10 hours. How many gallons per hour did he use?

iren2701 [21]

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3 years ago

The length of a rectangle is 3 cm more than twice the width. The area of the rectangle is 65 square centimeters. Find the dimens

polet [3.4K]

Answer:

5 cm and 13 cm

Step-by-step explanation:

Let b be the width of the rectangle.

Length = 3+2b

The area of the rectangle is 65 cm²

We need to find the dimensions of the rectangle. The area of a rectangle is given by :

A = lb

$65=(3+2b)b\\\\65=3b+2b^2\\\\3b+2b^2-65=0\\\\b=5\ cm,-6.5\ cm$

Neglecting the negative value, the width of the rectangle is 5 cm.

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=3+2(5)

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Hence, the dimensions of the rectangle are 5 cm and 13 cm.

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