How many degrees are in a central angle whose arc is 
of a circle?
A. 
°
B. 
°
C. 
°
D. 
°
E. 
°
Answer: D
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Find the component form of the specified vector.The unit vector that makes an angle -5?/3 with the positive x-axis
A. 
B. 
C. 
D. 
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 54.9, and the spring is to be stretched 4.3 feet from its natural length, how much work will be necessary? Round to the nearest tenth of a foot-pound.
A. 56.9 foot-pounds B. 1015.1 foot-pounds C. 507.6 foot-pounds D. 118 foot-pounds
Suppose ABC is a right triangle with sides of lengths a, b, and c and right angle at C. Find the unknown side length using the Pythagorean theorem and then find the value of the indicated trigonometric function of the given angle. Rationalize the denominator if applicable.Find sin A when b = 33 and c = 55
A. 
B. 
C. 
D. 
Find the exact interest to the nearest cent.$4,900 at 5% for 189 days
A. $12.69 B. $126.86 C. $12.86 D. $128.63