Solve the problem.
A radio telescope has a parabolic surface. If it is 1 m deep and 20 m wide, how far is the focus from the vertex?
A. 5 m
B. 25 m
C. 1 m
D. 100 m
Answer: B
Mathematics
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Solve the rational equation. If there is no solution, state this as your answer.
- 
= 
A. {-18}
B. {18}
C. {-3}
D. 
Mathematics
Factor the expression completely.
?
?
A. 
B. 
C. 
D. 
Mathematics
Find the discount date and net payment date. (The net payment date is 20 days after the final discount date.)Invoice date: Aug 6Terms: 2/16 ROGGoods received: Oct 10
A. Discount date: Oct 26; net payment date: Nov 16 B. Discount date: Oct 16; net payment date: Nov 16 C. Discount date: Oct 26; net payment date: Nov 15 D. Discount date: Sept 16; net payment date: Oct 16
Mathematics
Solve.A town has a population of 10,000 people and is increasing by 10% every year. What will the population be at the end of 4 years?
A. 14,641 B. 4641 C. 14,000 D. 13,310
Mathematics