Estimate the error in the quadratic approximation of the given function at the origin over the given region.
A. |E(x, y)| ? 0.0486
B. |E(x, y)| ? 0.0364
C. |E(x, y)| ? 0.1458
D. |E(x, y)| ? 0.0729
Answer: A
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Find 
.y = 59x
A. 9 ? 59x B. 59x ln 5 C. 9 ? 59x ln 5 D. 9 ? 59x ln 9
Evaluate the integral.
A. 
x2e2x - 
xe2x + 
e2x + C
B. 
x2e2x - 
xe2x + C
C. 
x2e2x - 
xe2x + 
e2x + C
D. 
x2e2x - xe2x + 
e2x + C
Solve.When making a telephone call using a calling card, a call lasting 5 minutes cost $1.70. A call lasting 14 minutes cost $3.95. Let y be the cost of making a call lasting x minutes using a calling card. Write a linear equation that models the cost of a making a call lasting x minutes.
A. y = 4x - 
B. y = -0.25x + 2.95
C. y = 0.25x - 10.05
D. y = 0.25x + 0.45
Answer the question.What values of n will make xn a perfect square?
A. n must be odd. B. n must be a multiple of 5. C. n must be a power of 3. D. n must be even.