Use Taylor's formula to find the requested approximation of 
near the origin.Cubic approximation to 
A. 1 - 2x - 18y + 3x2 + 72xy + 243y2 - 4x3 - 108x2y - 972xy2 - 2916y3
B. 1 - 2x - 18y + 3x2 + 54xy + 243y2 - 4x3 - 108x2y - 972xy2 - 2916y3
C. 1 + 2x + 18y - 3x2 - 72xy - 243y2 + 4x3 + 108x2y + 972xy2 + 2916y3
D. 1 + 2x + 18y - 3x2 - 54xy - 243y2 + 4x3 + 108x2y + 972xy2 + 2916y3
Answer: B
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Perform the indicated operation and express with the proper accuracy and precision. The first number given is approximate and the second number is exact. (Use calculator if needed).0.3073 + 19.7
A. 20.0073 B. 20 C. 20.01 D. 20.0
Find the numbers, if any, where the function 
is discontinuous.
Without actually converting, choose the most reasonable answer.A 55-gallon drum has a capacity of about __________ .
A. 208 L B. 208 ml C. 20.8 ml D. 20.8 L
Factor.2n2 + 5n - 63
A. (2n - 9)(9 - 2n) B. (2n - 72)(2n - 9) C. (2n - 9)(n + 7) D. (2n - 9)(n - 7)