Solve the problem.A painter needs to cover a triangular region with sides of 64 meters, 69 meters, and 70 meters. If each can of paint covers 70 square meters, how many cans will be needed?
A. 321 cans
B. 15 cans
C. 3 cans
D. 29 cans
Answer: D
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A school board has determined that there should be 3 teachers for every 50 students. How many teachers are needed for an enrollment of 2,750 students?
A. 190 teachers B. 176 teachers C. 165 teachers D. 181 teachers E. 222 teachers
Multiply, and then simplify if possible. Assume all variables represent positive real numbers.(
+ 3)(
- 1)
A. 
- 3
B. 3
+ 
C. 3
- 
D. 0
Solve the problem.Marco had 
in his checking account. He wrote a 
check for his car payment, deposited his 
paycheck, and then wrote a 
check for his rent. What is the current balance in his account?
A. $637 B. $1549 C. $1033 D. $1945
Solve the problem.Two forces of magnitude 25 pounds and 40 pounds act on an object. The force of 40 lb acts along the positive x-axis, and the force of 25 lb acts at an angle of 80° with the positive x-axis. Find the direction and magnitude of the resultant force. Round the direction and magnitude to the nearest whole number.
A. Direction: 29°; magnitude: 51 lb B. Direction: 4°; magnitude: 65 lb C. Direction: 40°; magnitude: 47 lb D. Direction: 51°; magnitude: 51 lb