Add or subtract.
- 
A. 1
B. - 
C. - 
D. 
Answer: B
Mathematics
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Solve the problem.A rescue cable attached to a helicopter weighs 2 lb/ft. A 160-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. 4860 ft ? lb B. 5700 ft ? lb C. 1060 ft ? lb D. 6600 ft ? lb
Mathematics
Draw the graph of the equation.(x + 2)2 = -6(y - 2)
A. 
B. 
C. 
D. 
Mathematics
Which of the following is NOT one of the three main algebraic habits of mind identified by Driscoll (1999)?
a. Doing-undoing b. Solving equations c. Building rules to represent functions d. Abstracting from computation
Mathematics
Use the substitution method to solve the system. x + 6y = -6-2x + 7y = 12
A. (6, -1) B. (-6, 0) C. (-5, -6) D. No solution
Mathematics