Simplify completely.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Factor the perfect square.25x2 + 90x + 81
A. (5x + 9)2 B. (5x - 10)2 C. (5x + 9)(5x - 9) D. (5x - 9)2
Mathematics
Solve the equation.9b2 + 30b + 21 = -4
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
A. y = -4 B. y = -2 C. y = -7 D. y = -10 E. y = -8
Mathematics
Find the radian measure of angle ?, if ? is a central angle in a circle of radius r, and ? cuts off an arc of length s.
?
cm, 
cm
?
A. 
B. 4
C. 
D. 
E. 5
Mathematics