Find the value of the expression. 
+ 
A. 22
B. 2
C. 20
D. 44
Answer: D
Mathematics
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Solve the equation.(ex)x ? e72 = e17x
A. {8} B. {9, 8} C. {9} D. {-9, -8}
Mathematics
Solve the system by the substitution method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(-4, 9)} B. {(-3, 8)} C. no solution; ? D. {(3, 9)}
Mathematics
Find the standard form of the equation of the hyperbola.
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Use the discriminant to determine the number of real solutions of the equation.7y2 = -2y - 5
A. 1 B. 2 C. No real solutions
Mathematics