Evaluate the given function.f(x) = 5x + 3, f(3)
A. 18
B. 128
C. 15,625
D. 125
Answer: B
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Perform the indicated operations, expressing the answer in simplest form with rationalized denominators.
A. 2
B. 2x2y2
C. 2x2y2
D. 4x4y4
First, use front-end rounding to round each number and estimate the answer. Then, find the exact answer.Julian's grocery bill was $9.32. He gave the clerk a $20 bill. How much change should he receive?
A. Estimate: $11; exact: $10.67 B. Estimate: $11; exact: $9.68 C. Estimate: $11; exact: $10.68 D. Estimate: $9; exact: $9.32
Solve the system of equations by substitution.5x + 3y = 802x + y = 30
A. (-10, 10) B. (10, 0) C. (10, 10) D. (0, 10)
Convert the polar equation to a rectangular equation.r = 
A. 3x2 - y2 + 16 = 0 B. 3y2 - x2 + 16 = 0 C. 3y2 - x2 -16y + 16 = 0 D. 3x2 - y2 -16x + 16 = 0