Solve.52 = 9x - 2
A. 45
B. 49
C. 7
D. 6
Answer: D
Mathematics
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Factor using the ac-method.9z2 + 6z - 8
A. (3z - 4)(3z + 2) B. (9z + 4)(z - 2) C. (3z + 4)(3z - 2) D. prime
Mathematics
Choose the equation that matches the rational function graphed.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Mathematics
Solve the system by substitution, if possible.
a. (6, 5)
b. (4, 7)
c. (–5, –1)
d. No solution; inconsistent system
Mathematics
Express the sum using summation notation. Use a lower limit of summation, not necessarily 1, and k for the index of summation.
+ 
+ 
+ 
+ . . . + 
A. 
B. 
C. 
D. 
Mathematics