Solve the problem.A water tank can be filled in 7 minutes and emptied in 8 minutes. If the drain is accidentally left open when the tank is being filled, how long does it take to fill the tank?
A. 
min
B. 56 min
C. 
min
D. 3
min
Answer: B
Mathematics
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Solve the problem.Find the perimeter of the rectangle.\ 
ft
A. 
ft
B. 
ft
C. 
ft
D. 
ft
Mathematics
Approximate the area of the triangle to the nearest tenth.a = 151, b = 160, c = 172
A. 13,908 B. 716 C. 11,126.4 D. 16,689.6
Mathematics
Solve the inequality. Express the solution using interval notation. -4?2-3x?14
(a) [ -4, 2 ) (b) ( -4, 2 ) (c) [ -2, 4 ] (d) [ -2, 4 ) (e) [ -4, 2 ]
Mathematics
A satellite is circling 112 miles above the earth, as shown in the figure. When the satellite is directly above point B, angle A is found to be 76.6°. Use this information to find the radius of the earth. Round your answer to the nearest mile.
?
?
?
?
A. 4,000 mi B. 4,006 mi C. 4,002 mi D. 3,986 mi E. 4,012 mi
Mathematics