Add or subtract and simplify.(6 + 3i) - (-4 + i)
A. 2 + 4i
B. 10 + 2i
C. -10 - 2i
D. 10 - 2i
Answer: B
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Solve the problem. Round your answer to the nearest tenth.A person is pulling a freight cart with a force of 49 pounds. How much work is done in moving the cart 30 feet if the cart's handle makes an angle of 34° with the ground?
A. 1218.7 ft-lb B. 82.2 ft-lb C. 822.0 ft-lb D. 1285.7 ft-lb
Solve the problem.A theatre sells two types of tickets to their plays; children's tickets and adult tickets. For today's performance they have sold a total of 1140 tickets. Also, they have sold 4 times as many children's tickets as adult tickets. How many children's tickets have they sold?
A. 69 B. 908 C. 912 D. 919
Evaluate the radical expressions or indicate that the root is not a real number.
A. -8 B. 2 C. -2 D. not a real number
Find two sets of parametric equations for the given rectangular equation.y = 8x + 7
A. x = t, y = 8t + 7; x = t, y = 
+ 7
B. x = t, y = 8t + 7; x = 8t, y = t + 7
C. x = 8t, y = t + 7; x = 
, y = t + 7
D. x = t, y = 8t + 7; x = 
, y = t + 7