Solve.The area of a triangular poster is 720 square centimeters. Its altitude is 12 feet shorter than twice its base. Find the lengths of the altitude and base.
A. base = 30 cm; altitude = 48 cm
B. base = 30 cm; altitude = 24 cm
C. base = 60 cm; altitude = 12 cm
D. base = 15 cm; altitude = 48 cm
Answer: A
Mathematics
You might also like to view...
Solve the problem.A rescue cable attached to a helicopter weighs 2 lb/ft. A 200-lb man grabs the end of the rope and is pulled from the ocean into the helicopter. How much work is done in lifting the man if the helicopter is 30 ft above the water?
A. 6060 ft ? lb B. 6900 ft ? lb C. 7800 ft ? lb D. 1100 ft ? lb
Mathematics
Perform the indicated operation. Simplify, if possible. -
+ 3
A.
B.
C.
D.
Mathematics
Simplify the expression.
A. -1 B. 16 C. 1 D. 2
Mathematics
Find the sum.-82 + (-21)
A. -61 B. 61 C. 103 D. -103
Mathematics