Use Cramer's rule to solve the system. 6x + 5y =25x + y=-11
A. {(4, -3)}
B. {(-4, -3)}
C. {(-3, -4)}
D. {(-3, 4)}
Answer: D
Mathematics
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Factor the difference of two squares. Assume that variables represent whole numbers.a2b2 - 4c2
A. (b + 2c)(b - 2c) B. (a2b + 2c)(ab - 2c) C. (ab + 2c)(ab - 2c) D. (abc + 2)(ab - 2)
Mathematics
Determine whether the first literal expression is equal to the second literal expression.a + b, b - (-a)
A. Yes B. No
Mathematics
Graph the integrand and use areas to evaluate the integral.
A. 18 B. 3 C. 9 D. 12
Mathematics
Solve the problem.Find the sum of the series 
by expressing 
as a geometric series, differentiating both sides of the resulting equation with respect to x, multiplying both sides by x, differentiating again, and replacing x by 
.
A. 
B. 
C. 
D. 
Mathematics