Evaluate the expression.sec 270°
A. 
B. 0
C. Undefined
D. -1
Answer: C
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Solve the problem.A bullet is fired with a muzzle velocity of 1054 ft/sec from a gun aimed at an angle of 23° above the horizontal. Find the horizontal component of the velocity.
A. 970.2 ft/sec B. -561.6 ft/sec C. 411.8 ft/sec D. 447.4 ft/sec
Solve the problem.From a point on a river, two boats are driven in opposite directions, one at 5 miles per hour and the other at 8 miles per hour. In how many hours will they be 65 miles apart?
A. 5 hr B. 7 hr C. 1 hr D. 6 hr
Use the product rule to multiply. Assume all variables represent positive real numbers.
? 
A. 84
B. 98
C. 42
D. 42
Find the derivative of the function.f(x) = (x2 - 3x + 2)(4x3 - x2 + 5)
A. 4x4 - 48x3 + 33x2 + 6x - 15 B. 20x4 - 52x3 + 33x2 + 6x - 15 C. 4x4 - 52x3 + 33x2 + 6x - 15 D. 20x4 - 48x3 + 33x2 + 6x - 15