Factor by grouping.s2 + 6s + 3s + 18
A. (s + 6)(s + 3)
B. (s + 6)(s - 3)
C. (s - 6)(s + 3)
D. (s - 6)(s - 3)
Answer: A
Mathematics
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Solve for the angle ?, where 0 ? ? ? 2?sin 2? + cos ? = 0
A. ? = 
, 
, 
, 
B. ? = 
, 
, 
, 
C. 
, 
, 
, 
D. ? = 
, 
, 
, 
Mathematics
Find the sum of the series.
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation.(10a2 + 8a - 7) - (4a2 - 3)
A. 14a2 + 8a - 10 B. 14a2 + 11a - 7 C. 6a2 + 11a - 7 D. 6a2 + 8a - 4
Mathematics
Solve for the requested variable.y varies directly as x and inversely as the square of z, and y = 20 when x = 32 and z = 4. Find y when 
and z = 2.
A. y =200 B. y = 100 C. y =6.25 D. y =50
Mathematics