Solve the equation on the interval [0, 2?).cos
- cos
= 1
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Answer: D
Mathematics
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For the given arithmetic sequence, find the specified term an and the sum of the terms from a1 to an, inclusive.5, 7, 9, 11, ... ; find a27
A. 57; 837 B. 57; 1620 C. 57; 729 D. 27; 1674
Mathematics
Find the expression.If v = 4i + j and w = -2i + j ; Find 
.
A. 
B. 6
C. 
D. 2
Mathematics
Solve.Neglecting air resistance, the distance h traveled by a free-falling object in time t is given by the formula 
Use this formula to find the time of free fall for a parachutist who falls 4052 feet before opening her parachute. Round your answer to the nearest tenth of a second.
A. 4.0 sec B. 15.9 sec C. 254.6 sec D. 126.6 sec
Mathematics
Solve the equation by factoring.2a2 + 8 = a2 + 6a
A. a = 4, 2 B. a = 4 C. a = 4, 3 D. a = -4, 3
Mathematics