Graph the system of inequalities. Shade the region that represents the solution set.x2 + y ? 1x2 - y ? 2
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.Integrate 
over the region 1 ? x2 + y2 ? 64.
A. 2? ln 8 B. 2?(ln 8)2 C. ? ln 8 D. ?(ln 8)2
The life expectancy E, in years, for a child born t years after 2000 is given by
.
In what birth year would a child have a life expectancy of 78.06 years?
?
A. 2010 B. 2008 C. 2006 D. That life expectancy never occurs.
Use the appropriate geometric formula to determine the missing dimension (radius, length, or height).Use 3.14 for ?. Round to the nearest hundredth when appropriate.A sphere with a volume of 30 cubic feet.
A. r = 3.11 ft B. r = 1.93 ft C. r = 367.92 ft D. r = 7.17 ft
Solve.A rectangular garden has vegetables planted in a 36-ft by 21-ft area. The vegetables are surrounded by a 2-ft border of flowers. By what percent is the area for planting vegetables increased if the 2-ft border of flowers is removed?
A. 33.4% B. 32.3% C. 11.5% D. 12.6%