Solve the problem.The position (in centimeters) of an object oscillating up and down at the end of a spring is given by 
at time t (in seconds). The value of A is the amplitude of the motion, k is a measure of the stiffness of the spring, and m is the mass of the object. Find the object's acceleration at time t.
A. a = - A
sin 
cm/sec2
B. a = 
cos 
cm/sec2
C. a = - 
sin 
cm/sec2
D. a = - A sin 
cm/sec2
Answer: C
Mathematics
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A. R = 62.0, ? = 218.5° B. R = 21.0, ? = 167.7° C. R = 23.0, ? = 347.7° D. R = 62.0, ? = 398.5°
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Determine the coordinates of the indicated point on the graph. 
C
A. (0, 2) B. (2, 1) C. (1, 2) D. (2, 0)
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Find the indicated term or coefficient of the binomial expansion.Find the 4th term of the expansion of (s - t)10.
A. -120s7t3 B. - s7t3 C. s6t4 D. 210s6t4
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Write the rational expression in lowest terms.
A. -t B. -1 C. 1 D. Already in lowest terms
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