You are in a boat 2 miles from the nearest point on the coast (see the figure below). You are to go to a point Q that is 3 miles down the coast and 1 mile inland. You can row at 4 miles per hour and walk at 5 miles per hour. Toward what point on the coast should you row in order to reach Q in the least time?
?
?
A. 
B. 
C. 
D. 
E. 
Answer: E
Mathematics
You might also like to view...
Find the domain and range of the inverse of the given function.f(x) = x3 - 4
A. Domain and range: all real numbers B. Domain: [0, ?); range: [0, ?) C. Domain: all real numbers; range: [-4, ?) D. Domain: [-4, ?); range: all real numbers
Mathematics
Solve.An inclined walkway leading to a new building is to rise 13 inches for each horizontal distance of 10 feet. Write this slope as a grade. (Round to the nearest tenth of a percent if necessary.)
A. 923.1% B. 76.9% C. 130% D. 10.8%
Mathematics
Solve.The sum of a number and its reciprocal is -2. Find the number.
A. 1 or -1 B. 1 C. -1 D. 2
Mathematics
Calculate the unit price. Round to the nearest cent, if necessary.$5.13 for 9 onions
A. $0.57 per onion B. $46.17 per onion C. $5.13 per onion D. $1.75 per onion
Mathematics