Use a half-angle formula to find the exact value of the expression.sin 
A. 
B. - 
C. 
D. - 
Answer: A
Mathematics
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Find the distance between the pair of points.(-6, -1) and (5, -3)
A. 5
units
B. 117
units
C. 13 units
D. 117 units
Mathematics
Solve the equation.-4.6 = y + 8
A. 3.4 B. -12.6 C. 12.6 D. -3.4
Mathematics
Find the amplitude, period and phase shift of  figure 1.png)
 figure 2.png)
Mathematics
Solve the problem.The period of vibration P for a pendulum varies directly with the square root of the length L. If the period of vibration is 2 sec when the length is 16 inches, what is the period when 
inches?
A. 2.75 sec B. 0.75 sec C. 3 sec D. 2.5 sec
Mathematics