Solve the problem.Evaluate sin 
.
A. Undefined
B. 0.1
C. -0.1
D. 0
Answer: B
Mathematics
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Fill in the missing factor.x2 + 16x + 63 = (x + 9)( )
A. x + 54 B. x2 + 7 C. x - 25 D. x + 7
Mathematics
Find the probability.One digit from the number 7,939,449 is written on each of seven cards. What is the probability of drawing a card that shows 7 or 4?
A. 
B. 
C. 1
D. 
Mathematics
Solve the problem.Find the measure (in radians) of a central angle of a sector of area 55 square inches in a circle of radius 8 inches. Round to the nearest hundredth.
A. 0.86 radians B. 1.72 radians C. 2.58 radians D. 3.44 radians
Mathematics
Factor the trigonometric expression and simplify.sin2x + sin2x cot2x
A. 1 B. cot2x - 1 C. cot2x + 1 D. sin2x + 1
Mathematics