Find an upper bound for the magnitude |E| of the error in the linear approximation L to f at the given point over the given region.
at 
R: |x - 1| ? 0.1, |y - 1| ? 0.1
A. |E| ? 0.007
B. |E| ? 0.0057
C. |E| ? 0.0047
D. |E| ? 0.0089
Answer: A
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Sketch D and g(D) from the description of D and change of variables 
x = u2 - v2, y = 2uv where D is the rectangle 0 ? u ? 1, 0 ? v ? 1
A.
 ? |  |
B.
 ? |  |
C. None of these.
D.
 ? |  |
Find the margin of error for the survey results described. In a poll of 358 adults, 44% said that they favored the proposed environmental laws.Give your answer as a decimal to three decimal places.
A. 0.026 B. 0.106 C. 0.003 D. 0.053
Solve.A circular flower garden has a diameter of 15 feet. Approximate the distance around the garden. Use 3.14 for ?.
A. 94.2 ft B. 706.5 ft C. 47.1 ft D. 23.55 ft
Solve the problem.Volatility refers to:
A. the amount of uncertainty or risk about changes in a security's value B. the likelihood that a security's value will only decrease in value C. a security's value as compared to an industry benchmark D. the likelihood that a security's value will only increase in value