Solve the problem.The number of centimeters, d, that a spring is compressed from its natural, uncompressed position is given by the formula d = 
, where W is the number of joules of work done to move the spring and k is the spring constant. Solve this equation for W. Use the result to determine the work needed to move a spring 4 centimeters if it has a spring constant of 0.6.
A. W = 2d2k; 19.2 joules
B. W = 
; 53.3 joules
C. W = 
; 1.4 joules
D. W = 
; 4.8 joules
Answer: D
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A. -5x6 - 13x5 + 9 B. 14x11 C. -5x6 - 4x5 + 9 D. -5x6 - 4x5 + 23
Multiply.9.73(73.84)
A. 71.84632 B. 71,846.32 C. 718.4632 D. 7184.632
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each and contain 1 unit of A and 2 units of B. The blue vitamin pills cost 
each and contain 2 units of A and 1 unit of B. To avoid indigestion, the patient should take no more than 4 red pills and no more than 7 blue pills. How many pills should the patient take each day to minimize costs?
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Use a reference triangle in an appropriate quadrant to find the angle.sin-1 
A. 
B. 
C. 
D. 