Use Taylor's formula to find the requested approximation of 
near the origin.Quadratic approximation to 
A. 1 + x + 3y + 
x2 + 
y2
B. x + 3y + 
x2 + 
y2
C. 1 + x + 3y + 
x2 + 3xy + 
y2
D. x + 3y + 
x2 + 
xy + 
y2
Answer: C
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Identify the quadrilateral.
A. Rectangle B. Parallelogram C. Trapezoid D. Rhombus
Solve the problem. Round to the nearest tenth.Find the percent increase (or decrease) in net sales from last year to this year for the income statement. 
A. 6.3% decrease B. 6.9% increase C. 6.3% increase D. 6.9% decrease
Add or subtract as indicated. Simplify, if necessary.
- 
A. - 
B. - 
C. 
D. 
Solve the problem.The formula 
can be used to estimate the maximum safe velocity v, in miles per hour, at which a car can travel along a curved road with a radius of curvature r, in feet. To the nearest whole number, find the radius of curvature if the maximum safe velocity is 30 miles per hour.
A. 2250 ft B. 144 ft C. 360 ft D. 900 ft