Solve the problem.The number of centimeters, d, that a spring is compressed from its natural, uncompressed position is given by the formula 
where W is the number of joules of work done to move the spring and k is the spring constant. If a spring has a spring constant of 0.6, find the amount of work needed to move the spring 5 centimeters.
A. 15 joules
B. 1.5 joules
C. 25 joules
D. 7.5 joules
Answer: D
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Solve the problem.In 2001 the population of a midwest city was 20,000. By 2011 it had grown to 24,000. If it continues to grow at the same rate, what will the population be in 2028? Round to the nearest whole number.
A. 26,800 B. 28,500 C. 30,800 D. 25,100
Solve.In 1985, the number of female athletes participating in Summer Olympic-Type Games was 550. In 1996, about 3550 participated in the Summer Olympics in Atlanta. Assuming that 
and that the exponential model applies, find the value of k rounded to the hundredths place, and write the function.
A. k = 0.16; P(t) = 500e0.16t B. k = 0.17; P(t) = 500e0.27t C. k = 0.19; P(t) = 500e0.19t D. k = 0.17; P(t) = 500e0.17t
Graph the function.y = 
cot 3x
A. 
B. 
C. 
D. 
Solve for the indicated variable.
+ 
= 
, for c
A. c = a + b
B. c = ab(a + b)
C. c = 
D. c = 