Find the solution to the system of equations by substitution.2x + 9y = -8 x + 
y = 
A. (5, -2)
B. (-5, -2)
C. (5, 2)
D. (-5, 2)
Answer: A
Mathematics
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Solve the equation.
+ 
= 5
A. 40 B. 2 C. 1 D. 0
Mathematics
Find an expression equivalent to the given expression.
A. -cosh x B. -sinh x C. sinh x D. cosh x
Mathematics
Find the product.
A. 
B. 
C. 
D. 
Mathematics
Solve the system by the elimination method or a combination of the elimination and substitution methods. x2 - xy + y2 = 32x2 + xy + 2y2 = 12
A. {(2, 1), (1, 2)} B. {(1, 0), (-1, 0)} C. {(2, 1), (-2, -1), (1, 2), (-1, -2)} D. {(2, 0), (-2, 0), (1, 0), (-1, 0)}
Mathematics