Graph.
- 
= 1
A. 
B. 
C. 
D. 
Answer: A
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The speed of sound in air depends on the temperature. When the temperature is 32 degrees Fahrenheit, the speed 
of sound is 1087.5 feet per second. The average rate of change for ?S is 1.1 feet per second per degree Fahrenheit. Use these facts to estimate the speed of sound in air when the temperature is 59 degrees Fahrenheit.
?
A. 1088.6 feet per second B. 1097.5 feet per second C. 1117.20 feet per second D. none of the above
Replace A with the proper expression such that the fractions are equivalent.
= 
A. 2x2 + 2x B. x2 + 4x + 4 C. x2 + 4 D. 2x2 + 4x
Solve.A company that manufactures hospital beds has fixed monthly costs of $240,000. The average cost per bed, C, for the company to manufacture x beds per month is modeled by the formula C = 
How many hospital beds can be manufactured per month at an average cost of $850?
A. 800 beds B. 900 beds C. 950 beds D. 675 beds
Solve the problem.Jordan sold his used golf clubs and accessories for $219. If he received twice as much money for the golf clubs as he did for the accessories, find how much money he received for the golf clubs.
A. $83 B. $438 C. $73 D. $146