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4 years ago

Find the circumference leave your answer in terms of pi.

Mathematics

2 answers:

Ahat [919]4 years ago

3 0

C=2*pi*r
C=d*pi
d=8.4
C=(8.4)pi
8.4*pi

guajiro [1.7K]4 years ago

3 0

Answer:

(D) is correct

Step-by-step explanation:

Given: A circle with diameter 8.4 centimeters.

To find: The circumference of the given circle.

Solution: It is given that a circle has a diameter of 8.4 cm, therefore radius of the circle will be:

$R=\frac{D}{2}=\frac{8.4}{2}=4.2 cm$ .

Now, the circumference of the circle is given as:

$C=2{\pi}r$

Substituting the given values, we have

$C=2{\pi}(4.2)$

$C=8.4{\pi} cm$

Thus, the circumference of the circle will be $8.4{\pi} cm$ .

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Hey there! :D

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3 years ago

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Sever21 [200]

Answer:

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3 years ago

A contractor combined x tons of a gravel mixture that contained 10 percent gravel G, by weight, with y tons of a mixture that co

White raven [17]

Answer:

The value of x would be $\frac{3}{5}y$ or $\frac{3}{8}z$

Step-by-step explanation:

Given,

x tons of 10% gravel G mixture is mixed with y ton of 2% gravel G to obtain 5% gravel mixture,

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$x+\frac{3}{5}x=\frac{3}{5}z$

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3 years ago

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Gre4nikov [31]

Answer:

He created numerous programs to provide relief to the unemployed and farmers while seeking economic recovery with the National Recovery Administration and other programs

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Step-by-step explanation:

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