Solve the equation.
= -6
A. 
B. ?
C. {180}
D. 
Answer: B
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For an arc length s, area of sector A, and a central angle ? of a circle of radius r, find the indicated quantity.r = 81.6 cm, ? = 
radians, find A
A. 1310 cm2 B. 16.1 cm2 C. 2620 cm2 D. 417 cm2
Write the vector in the form ai + bj. 
A. -3i + 2j B. 2i - 3j C. 2i + 3j D. 3i + 2j
Find the product.(p + 8q)(p - 8q)
A. p2 + 16pq - 64q2 B. p2 - 16pq - 64q2 C. p2 - 64q2 D. p2 - 16q2
Solve the problem.The length a spring is stretched from its natural length with work, W
is given by L = 
where k is a constant for the given spring. If a certain spring has a constant of 76.6, and the spring is to be stretched 1.2 feet from its natural length, how much work will be necessary? Round your answer to the nearest tenth.
A. 46 ft-lb B. 110.3 ft-lb C. 42 ft-lb D. 55.2 ft-lb