Solve the problem. Assume all data are accurate to two significant digits unless greater accuracy is given.Two cities are 81.4km apart. Vehicle A leaves one city at the same time vehicle B leaves the other. Find the speed of vehicle A if it travels 6.5 km/h faster than vehicle B and if they pass in 14.7 minutes.
A. 6.0 km/h
B. 169.4 km/h
C. 166.3 km/h
D. 162.9 km/h
Answer: B
You might also like to view...
Use the distributive property to rewrite the algebraic expression without parentheses. Then simplify the result, if possible.3(x + 7)
A. 3x + 10 B. 3x + 21 C. x + 21 D. 3x + 7
Solve the equation.Solve 5 cos t + 2 = 1.281 for t, where t is a real number in the interval 
. Approximate t to 3 decimal places.
A. 0.475 B. 1.715 C. 1.426 D. 0.493
Simplify the expression using the order of operations.(80 + 42) ÷ 2 ? 22
A. 192 B. 12 C. 82 D. 112
Solve the problem.The formula D = 8e-0.04h can be used to find the number of milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. When the number of milligrams reaches 3, the drug is to be given again. What is the time between injections?
A. 24.52 hrs B. 27.47 hrs C. 25.97 hrs D. 51.99 hrs