Use a calculator to approximate the expression to three decimal places. If the expression is not a real number, state this.
A. 8.000
B. 2.828
C. 2.833
D. 2.825
Answer: B
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Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.The marketing division of a company predicts that 78% of the 450 special promotional sale items will sell on the first day of sale. What percent of the promotional items should be available after the first day of sale? How many special promotional items should be available after the first day of sale?
A. 78%; 351 items B. 22%; 99 items C. 22%; 351 items D. 78%; 99 items
Solve the problem.Lookout station B is located 12 mi due east of station A. The direction of a fire from A is 
and the direction from B is 
Determine the distance from the fire to B (to the nearest tenth of a mile).
A. 12.45 mi B. 14.45 mi C. 24.9 mi D. 26.9 mi
Solve the given equation for the indicated variable.M = ?r2hd for r
A. r = 
B. r = 
C. r = 
D. r = ±
Use synthetic division to determine whether x - c is a factor of the given polynomial.x3 - 11x2 + 12x + 80; x + 3
A. Yes B. No