Question and answer
Sound waves can't travel through A. a vacuum. B. a liquid. C. an elastic material. D. a solid.
Sound waves can't travel through a vacuum.
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Expert answered|Score 1|Ishm|Points 16595|
Question|Asked by sschreiberxo
Asked 12/1/2018 7:29:23 PM
Updated 7/12/2019 7:44:53 AM
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Confirmed by alfred123 [7/12/2019 7:44:53 AM]
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Questions asked by sschreiberxo
If a triangle has a height of 14 inches and a base of 9 inches, what's its area? A. 135 square inches B. 46 square inches C. 126 square inches D. 63 square inches
Weegy: A triangle has a height of 14 inches and a base of 9 inches. It's area is: 63 square inches. Area = (14*9)/2 = 126/2 = 63 square inches (More)
Question|Asked by sschreiberxo
Expert Answered
Updated 12/13/2018 5:43:00 AM
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An earthquake was felt throughout a circular area of 1,808.64 square miles. What was the radius of the circular area? A. 24 miles B. 576 miles C. 12 miles D. 20 miles
Question|Asked by sschreiberxo
Not Answered
Updated 157 days ago|5/22/2020 11:45:51 PM
1 Answer/Comment
An earthquake was felt throughout a circular area of 1,808.64 square miles. The radius of the circular area is 24 miles.

Area = pi * r ^2 = 3.14 * r^2, 1,808.64 = 3.14 *r^2 ,r^2 = 1,808.64 / 3.14 , r^2 =576 , r =24 miles
Added 157 days ago|5/22/2020 11:45:51 PM
This answer has been confirmed as correct and helpful.
High human populations have had a negative effect on what issue? A. Demand for consumer goods B. Biodiversity C. Ability to staff armies D. Business profits
Weegy: High human populations have had a negative effect on Biodiversity. (More)
Question|Asked by sschreiberxo
Expert Answered
Updated 12/1/2018 7:01:03 PM
0 Answers/Comments
High human populations have had a negative effect on what issue? A. Demand for consumer goods B. Biodiversity C. Ability to staff armies D. Business profits
Weegy: High human populations have had a negative effect on biodiversity. (More)
Question|Asked by sschreiberxo
Expert Answered
Updated 12/1/2018 6:20:03 PM
0 Answers/Comments
During the stage of internal combustion engine operation in which the piston rises and compresses the fuel in the combustion chamber, A. both the intake and exhaust valves are open. B. the exhaust valve is open and the intake valve is closed. C. the intake valve is open and the exhaust valve is closed. D. both the intake and exhaust valves are closed.
Question|Asked by sschreiberxo
Updated 85 days ago|8/3/2020 6:22:20 AM
1 Answer/Comment
During the stage of internal combustion engine operation in which the piston rises and compresses the fuel in the combustion chamber, both valves will be closed.
Added 85 days ago|8/3/2020 6:22:20 AM
This answer has been confirmed as correct and helpful.
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