Answers by YU FENG
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Answers by YU FENG

Answers by YU FENG
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The veloctiy of sound in air is given by the equation v=20 times the square root of 273+t where v is the velocity in meters per second and t is the temperature in degrees Celcius. Find the temperature
answered Jan 5, 2019
2 votes
191k views
Ten times the square of a non‐zero number is equal to seventy times the number. What is the number?
answered Nov 30, 2018
1 vote
28.4k views
What is a composite number?
answered Nov 17, 2018
2 votes
113k views
What is the standard form of the equation of the circle with the given characteristics. Center: (-3,-6); radius: 6
answered Oct 24, 2018
2 votes
12.6k views
If u broke a rock how would u break it
answered Mar 24, 2018
3 votes
161k views
Macbeth have murdered one of the following to keep one of the witches' prophecies from coming true. Which is the correct answer? A. The thane of Cawdor B. Malcolm and Donalbain C. King Duncan D. Banquo
answered Dec 22, 2017
4 votes
175k views
Which question would form the best basis for a quality research paper? A. Are Americans liberal or conservative? B. How have Amercian's attitudes toward affirmative action changed over time? C. What is
answered Sep 20, 2017
3 votes
13.7k views
Which answer choice correctly completes the sentence? The robin is guarding __________ nest from predators. A. its' B. it's C. its
answered May 9, 2017
3 votes
106k views
Cowan, Gary, and Roy Duncan. Helicopters. New York: Random House, 2000. How should this source be cited in the paper? a. (Gary Cown, 2000) b. (Cowan and Duncan, 2000) c. (Helicopters, 2000) d. (Cowan and
answered Feb 13, 2017
5 votes
131k views
Which of the following transport mechanisms utilizes energy? A. Osmosis B. Endocytosis C. Diffusion D. Facilitated diffusion
answered Jan 30, 2017
6 votes
132k views
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