If you were trying to build a soundproof room, which of the following materials would you choose in order to absorb the most sound, based on the coefficient of absorption for each material?
A. Concrete
B. Carpet
C. Wood
D. Heavy curtains

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Asked 4/1/2019 9:43:14 AM

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Question|Asked by dmlharris

Asked 4/1/2019 9:43:14 AM

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The distance from the center of a round table top to the edge of the table top is 4 ft. What's the area of the table top?
A. 25.14 sq. ft.
B. 50.24 sq. ft.
C. 38 sq. ft.
D. 16 sq. ft.
**Weegy:** The distance from the center of a round table top to the edge of the table top is 4 ft. Area of the table top = pi x (r squared) = 3.14 x (4 x 4) = 3.14 x 16 = 50.24 sq ft. **User:** Store space in a shopping mall is often rented by the square foot. What's the area of a rectangular jewelry store that is 12 feet wide and 18 feet long?
A. 576 square feet
B. 288 square feet
C. 68 square feet
D. 216 square feet
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Question|Asked by dmlharris

Not Answered

Updated 7/8/2019 7:40:35 AM

1 Answer/Comment

Store space in a shopping mall is often rented by the square foot. The area of a rectangular jewelry store that is 12 feet wide and 18 feet long is 216 sq.ft.

Area = l*w =18*12 =216

Area = l*w =18*12 =216

Added 7/8/2019 7:40:35 AM

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If a triangle has a height of 14 inches and a base of 9 inches, what's its area?
A. 63 square inches
B. 46 square inches
C. 135 square inches
D. 126 square inches

Question|Asked by dmlharris

Not Answered

Updated 7/8/2019 7:40:15 AM

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A triangle has a height of 14 inches and a base of 9 inches, the area is 63 square inches.

Area = (14*9)/2 = 126/2 = 63 square inches

Area = (14*9)/2 = 126/2 = 63 square inches

Added 7/8/2019 7:40:15 AM

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What is the radius of a circle with an area of 32.1 square feet?
A. 3.20 ft.
B. 5.23 ft.
C. 10.22 ft.
D. 4.75 ft.

Question|Asked by dmlharris

Not Answered

Updated 3/25/2019 11:15:47 AM

1 Answer/Comment

The radius of a circle with an area of 32.1 square feet is 3.20 ft.

A = pi * r^2

r = sqr(A/pi)

r = sqr(32.1/3.14)

r = 3.20 (rounded)

A = pi * r^2

r = sqr(A/pi)

r = sqr(32.1/3.14)

r = 3.20 (rounded)

Added 3/25/2019 11:15:47 AM

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Find the circumference of a circle that has an area of 452.16 square meters. (Use 3.1416 as the value of .)
A. 37.6992 meters
B. 12 meters
C. 75.3984 meters
D. 24 meters

Question|Asked by dmlharris

Not Answered

Updated 7/8/2019 7:41:24 AM

1 Answer/Comment

The circumference of a circle that has an area of 452.16 square meters is 75.3984 meter.

Area = pie *r^2 = 452.16

r^2 = 452.16 /3.14

r = 12

circumference = 2*pi*r

C = 2 * 3.1416 * 12 = 75.3984

Area = pie *r^2 = 452.16

r^2 = 452.16 /3.14

r = 12

circumference = 2*pi*r

C = 2 * 3.1416 * 12 = 75.3984

Added 7/8/2019 7:41:24 AM

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What's the area of a square computer screen with 21-inch sides?
A. 42 sq. in.
B. 220 sq. in.
C. 441 sq. in.
D. 84 sq. in. **Weegy:** The area of a square computer screen with 21-inch sides is 441 sq.inches . Area = a^2 = 21^2 = 21*21 = 441 **User:** If the area of a circle is 58 square feet, find the circumference.
A. 42.5 ft.
B. 22.35 ft.
C. 4.25 ft.
D. 26.99 ft. **Weegy:** if the area of a circle is 58 square feet, the circumference is 26.99 ft.
A = pi * r^2
r = sqr(A/pi)
r = sqr(58/3.1416)
r = sqr(18.46)
r = 4.2967
d = 4.2967 * 2
d = 8.5934
c = d * pi
c = 8.5934 * 3.1416
c = 26.99 (rounded) **User:** Sheri's freezer is 2 feet wide, 6 feet long, and 2 feet deep. What's the volume of her freezer?
A. 10 cubic feet
B. 4 cubic feet
C. 24 cubic feet
D. 12 cubic feet
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Question|Asked by dmlharris

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Asked 3/25/2019 11:00:35 AM

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