Simplify the expression. Write the result using positive exponents only.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Write the first five terms of the arithmetic sequence with the given values.a2 = -7, a5 = 
A. - 
, -7, 
, 20, 
B. -7, 
, 20, 
, 40
C. -7, - 
, 2, 
, 11
D. - 
, -7, - 
, 2, 
Mathematics
Solve.5x2 - 44x - 9 = 0
A. x = 
, x = - 
B. x = -5, x = 9
C. x = - 
, x = 9
D. x = - 
, x = 5
Mathematics
Solve the problem.In how many ways can a class president and a class secretary be chosen from a group of 6 candidates?
A. 11 B. 120 C. 12 D. 30
Mathematics
Graph.f(x) = 
x - 4
A. 
B. 
C. 
D. 
Mathematics