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3 years ago

What is the diameter of a circle if the circumference is 34.54 units?

Mathematics

1 answer:

pentagon [3]3 years ago

8 0

Answer:

D=10.99

Step-by-step explanation:

Diameter = Circumference divided by Pi

34.54/3.14 = 10.99

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A circle has a circumference of 18. It has an arc of length 6. What is the central angle of the arc, in degrees?

nadya68 [22]

Circumference: 2πr C=18 so r= 18/2π= 9π

Arc length = rθ 6=(9π)θ θ=6/9π

Convert to degrees by multiplying by 180/π

6/9π x 180/π = 120 degrees

4 0

3 years ago

What is the unit rate of 42 dollars for 3 books?

USPshnik [31]

42/3 = 14

I think the unit rate is $14.

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3 years ago

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andrey2020 [161]

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3 years ago

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lianna [129]

Answer:

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Step-by-step explanation:

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2 years ago

Bath and 1 yard of ribbon. She is 1/2 yard for project. She wants to divide the rest of the ribbon into pieces 1/4 yards long. H

ikadub [295]

Answer:

Step-by-step explanation:

Given:

Total length of ribbon = 1 yard

Length of ribbon used for project = $\frac{1}{2}$ yard

Length of ribbon the rest of ribbon is to be divided = $\frac{1}{4}$ yard

To find:

The number of ribbons of length $\frac{1}{4}$ yard that can be made = ?

Solution:

Length of ribbon left after the 1 yard ribbon is used for project can be calculated by subtracting the length of ribbon used from the initial length of ribbon.

i.e.

Length of ribbon left = $1-\frac{1}{2} =\frac{1}{2}$ yard

Now, number of ribbon of length $\frac{1}{4}$ yard can be found be dividing the length of ribbon left with the length of ribbon pieces to be cut.

i.e.

Number of ribbons:

$\dfrac{\frac{1}{2}}{\frac{1}{4}}\\\Rightarrow \dfrac{1}{2}\times 4 = 2$

3 0

3 years ago