Solve the problem. First use front end rounding. Then find the exact answer.An assembly line can produce 394 bicycles each hour. At this rate find the number of bicycles produced in 22 hours.
A. Estimate: 8580 bicycles; exact: 7880 bicycles
B. Estimate: 156,000 bicycles; exact: 7880 bicycles
C. Estimate: 8000 bicycles; exact: 8668 bicycles
D. Estimate: 8580 bicycles; exact: 8668 bicycles
Answer: C
Mathematics
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A. Composite B. Prime
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Solve the radical equation, and check all proposed solutions.
- 
= 1
A. ? B. {-3, -1} C. {-1, 3} D. {3}
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Graph the ellipse.
+ 
= 1
A. 
B. 
C. 
D. 
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Solve.- 
= y - 
A. 
B. 
C. 
D. 
Mathematics