Calculate the perimeter for the given figure. Use 3.14 for ?. Round to hundredths if necessary.Isosceles trapezoid
A. 79.42 ft
B. 70.24 ft
C. 74.48 ft
D. 92.84 ft
Answer: D
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Solve the problem.Police use a formula s = S 
, where S is the test-car speed (mph) and L is the test-skid length (feet), to find the actual speed, s, in an accident which left a skid mark of length x feet. Find the actual speed (to the nearest tenth) when S = 63 mph, x = 150 ft, L = 100 ft.
A. 113.0 mph B. 51.7 mph C. 77.2 mph D. 94.5 mph
Find the amount by which the ordinary interest is larger than the exact interest. Round to the nearest cent.$18,600 at 5% for 120 days
A. $5.75 B. $310.00 C. $4.25 D. $2.75
Insert >, < , or = as appropriate in the expression.
?
, 
?
A. > B. = C. <
Solve the problem. First use front end rounding. Then find the exact answer.Find the total amount Lisa stashed in an envelope on her dresser if she placed $485 there at the end of each week, for 3 weeks.
A. Estimate: $1500; exact: $1470 B. Estimate: $1470; exact: $1455 C. Estimate: $1470; exact: $1470 D. Estimate: $1500; exact: $1455