First, write the value(s) that make the denominator(s) zero. Then solve the equation.
+ 4 = 
A. x ? -7; {-1}
B. x ? 7; ?
C. x ? 7; {-1}
D. x ? -7; {17}
Answer: C
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Use Taylor's formula to find the requested approximation of 
near the origin.Cubic approximation to 
A. 10x + y - 50x2 - 10xy - 
y2 + 
x3 + 
x2y + 
xy2 + 
y3
B. 1 + 10x + y - 50x2 - 10xy - 
y2 + 
x3 + 
x2y + 
xy2 + 
y3
C. 1 + 10x + y - 50x2 - 10xy - 
y2 + 
x3 + 100x2y + 10xy2 + 
y3
D. 10x + y - 50x2 - 10xy - 
y2 + 
x3 + 100x2y + 10xy2 + 
y3
Simplify.
- 
A. 
B. 0
C. 
D. 
The sides in the pair of figures are proportional. Find the missing length(s).
Give your answers in decimal form.
A. x = 16.5, y = 6.5 B. x = 16.25, y = 6.25 C. x = 15.75, y = 6.25 D. x = 16.25, y = 6.75
Solve the problem.A drippy faucet wastes 24 oz of water a day. If there are 89 million such drippy faucets, how much water, in gallons, is wasted in a day?
A. 16,687,500 gal/day B. 66,750,000 gal/day C. 2136 gal/day D. 33,375,000 gal/day