Solve the problem.What is the coefficient of a4b3cd2 in the expansion of (a + b + c - d)10?
A. 12,600
B. -362,880
C. 362,880
D. -12,600
Answer: A
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Solve the problem. Round your answer to 2 decimal places when necessary.In a recent year, there were 45 accidents in commercial aviation among major airlines over 15.0 million flight hours. Find the accident rate in units of accidents per 100,000 flight hours.
A. 3 accidents per 100,000 flight hours B. 0.30 accidents per 100,000 flight hours C. 0.45 accidents per 100,000 flight hours D. 4.5 accidents per 100,000 flight hours
Draw the given angle in standard position. Draw an arrow representing the correct amount of rotation. Find the measure of two other angles, one positive and one negative, coterminal with the given angle.170°
A. 350° and -10°
B. 530° and -190°
C. 530° and -190°
D. 350° and -10°
Rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater than 1.sin3 x
A. 
sin x + 
sin 2x - 
sin 3x
B. 
sin x
C. 
sin x - 
sin 3x
D. 
sin x + 
sin 2x
Simplify. Assume that variables represent positive values.
A. 
B. 
C. 
D. 