Find the length of the curve.y = 
, 3 ? x ? 6
A. 18
B. 
C. 27
D. 9
Answer: B
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Solve.To estimate the number of people in Springfield, population 10,000, who have a swimming pool in their backyard, 250 people were interviewed. Of those polled, 92 had a swimming pool. How many people in the city might one expect to have a swimming pool? (Round to the nearest whole number, if necessary.)
A. 3680 people B. 27,174 people C. 368 people D. 2 people
Use front-end rounding to round each number. Then, add or subtract the rounded numbers to get an estimated answer. Finally, find the exact answer.What is 5.039 grams from 533.3 grams?
A. Estimate: 495 grams; exact: 528.271 grams B. Estimate: 495 grams; exact: 528.361 grams C. Estimate: 495 grams; exact: 528.261 grams D. Estimate: 595 grams; exact: 538.261 grams
Solve the problem.Use the formula A = P(1 + r)2 to find what the rate of interest is if a principal amount of $4000 grows to $4752.40 in 2 years, if interest is compounded annually.
A. 7% B. 10% C. 11% D. 9%
Draw a tree diagram to find the number of possible outcomes.Toss three coins.
A. 3 outcomes B. 6 outcomes C. 8 outcomes D. 1 outcome