Solve the system of equations by graphing.2x - y = 3 y = 1 
A. (1, 2)
B. (2, 1)
C. (-2, -1)
D. no solution
Answer: B
Mathematics
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Calculate the derivative of the function. Then find the value of the derivative as specified.f(x) = 5x + 9; f '(2)
A. f '(x) = 9; f '(2) = 9 B. f '(x) = 0; f '(2) = 0 C. f '(x) = 5x; f '(2) = 10 D. f '(x) = 5; f '(2) = 5
Mathematics
Fill in the blank.A fraction written as a percent is greater than 100% when the numerator is 
than the denominator.
A. greater B. less
Mathematics
Simplify the quotient. Assume all variables represent positive real numbers.- 
A. - 2
B. - 
C. - 
D. - 
Mathematics
Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set. x - 3y = 21-3x - 4y = 15
A. Cramer's rule does not apply since D = 0; ? B. {(2, -5)} C. {(3, -6)} D. {(-3, -5)}
Mathematics