Solve the problem.At time t, the position of a body moving along the s-axis is 
m. Find the body's acceleration each time the velocity is zero.
A. a(2) = -18 m/sec2, a(8) = 18 m/sec2
B. a(2) = 0 m/sec2, a(8) = 0 m/sec2
C. a(2) = 18 m/sec2, a(8) = -18 m/sec2
D. a(4) = 24 m/sec2, a(16) = 4 m/sec2
Answer: A
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Use the Pythagorean Theorem to find the length of the missing side.Then find the indicated trigonometric function of the given angle. Give an exact answer with a rational denominator.Find sin ?.
A. 
B. 
C. 
D. 
Solve the problem. Round to one decimal place if needed.If a flagpole 15 feet tall casts a shadow that is 20 feet long, find the length of the shadow cast by an antenna which is 39 feet tall.
A. 44 ft B. 52 ft C. 7.7 ft D. 29.3 ft
Find Pk+1 from the given statement Pk.Pk: (k - 1)2 + 2k = k2 + 1
A. Pk+1: k2 + 2k + 1 = (k + 1)2 + 1 B. Pk+1: (k + 1)2 + 2(k + 1) = (k + 1)2 + 1 C. Pk+1: k2 + 2(k + 1) = (k + 1)2 + 1 D. Pk+1: k2 + 2(k + 1) = k2 + 2
Solve.Find the area of a parallelogram with a base = 23 feet and height = 11 feet.
A. 126.5 ft2 B. 506 ft2 C. 253 ft2 D. 34 ft2