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Erik cooks on a range that has four round electric burners. One of the burners has a radius of $4$ inches. What is the burner's circumference? $\newline$ Use $3.14$ for $\pi$ . If necessary, round your answer to the nearest hundredth. $\newline$ _____ inches

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Circles: word problems

Full solution

Q. Erik cooks on a range that has four round electric burners. One of the burners has a radius of

4

inches. What is the burner's circumference?

\newline

Use

3.14

for

\pi

. If necessary, round your answer to the nearest hundredth.

\newline

_____ inches

Identify formula for circumference: Step $1$ : Identify the formula for circumference using radius. $\newline$ We know the formula for circumference when given the radius is $c = 2\pi r$ . $\newline$ Here, $r = 4$ inches and $\pi = 3.14$ .
Substitute values into formula: Step $2$ : Substitute the values into the formula. $\newline$ Circumference $c = 2 \times 3.14 \times 4$ inches.
Perform multiplication to find circumference: Step $3$ : Perform the multiplication to find the circumference. $\newline$ Calculate $2 \times 3.14 \times 4 = 25.12$ inches.

More problems from Circles: word problems

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Skyler climbs a watchtower to guard against forest fires.

\newline

R(h)=\sqrt{13h}

gives the distance, in kilometers, that Skyler can see when their eyes are

h

meters above the ground.

\newline

A(d)=\pi d^{2}

gives the area, in square kilometers, that Skyler can guard when they can see a distance of

d

\newline

Which expression models the area Skyler can guard when their eyes are

h

meters above the ground?

\newline

1

\newline

13\pi h

\newline

13\pi h^{2}

\newline

\sqrt{13\pi h^{2}}

\newline

169\pi h^{2}

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Question

After the outbreak of a mysterious disease, the average wait time at a hospital increased by

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. Before the outbreak, the average wait time at the hospital was

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\newline

Which of the following expressions could represent the average wait time at the hospital after the outbreak?

\newline

2

\newline

0.7m

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\frac{170}{100}m

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m+70

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m+0.7

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1.7m

Posted 7 months ago

Question

The radius of a semicircle is

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yards. What is the semicircle's area?

\newline

\pi \approx 3.14

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\newline

Posted 8 months ago

Question

\newline

A man has bent a circular wire of radius

49\text{cm}

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\newline

A)100\text{cm}

\newline

B)50\text{cm}

\newline

C)98\text{cm}

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Question

A quarter is worth

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and a half dollar is worth

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\newline

a. A quarter has a diameter of

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inch and a height of

\frac{1}{16}

inch. Find the surface area of a quarter. Round your answer to the nearest hundredth.

\newline

b. A half dollar has a diameter of

\frac{9}{8}

inches and a height of

\frac{3}{32}

inch. Find the surface area of a half dollar. Round your answer to the nearest hundredth.

Posted 8 months ago

Question

The hypotenuse of a right triangle measures

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and one of its legs measures

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. Find the measure of the other leg. If necessary, round to the nearest tenth.

\newline

\square

\mathrm{cm}

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Question

One of the legs of a right triangle measures

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and its hypotenuse measures

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\newline

\square

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Posted 9 months ago

Question

One of the legs of a right triangle measures

8 \mathrm{~cm}

and the other leg measures

15 \mathrm{~cm}

. Find the measure of the hypotenuse. If necessary, round to the nearest tenth.

\newline

\square

\mathrm{cm}

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Question

Find the volume of a right circular cone that has a height of

7.4 \mathrm{~cm}

and a base with a radius of

8.1 \mathrm{~cm}

. Round your answer to the nearest tenth of a cubic centimeter.

\newline

\mathrm{cm}^{3}

Posted 9 months ago

Question

Find the volume of a right circular cone that has a height of

13.3 \mathrm{ft}

and a base with a diameter of

9.4 \mathrm{ft}

. Round your answer to the nearest tenth of a cubic foot.

\newline

\mathrm{ft}^{3}

Posted 9 months ago

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