Solve the equation.
+ 5 = x
A. {2, 9}
B. {2}
C. {9, 18}
D. {9}
Answer: D
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Solve the problem. Round your answer to the nearest tenth.A wagon is pulled horizontally by exerting a force of 60 pounds on the handle at an angle of 25° to the horizontal. How much work is done in moving the wagon 50 feet?" .
A. 2718.9 ft-lb B. 1617.4 ft-lb C. 2110.8 ft-lb D. 1267.9 ft-lb
Find the unit tangent vector of the given curve.r(t) = 3t5i - 12t5j + 4t5k
A. T(t) = 
i - 
j + 
k
B. T(t) = 
i - 
j + 
k
C. T(t) = 
i - 
j - 
k
D. T(t) = 
i + 
j + 
k
Factor the trinomial completely.x3 + 5x2 - 84x
A. x(x - 12)(x + 7) B. (x2 + 7)(x - 12) C. x(x + 12)(x - 7) D. (x2 + 12)(x - 7)
Translate to a proportion and solve. 185 is what percent of 1700?Round your answer to the nearest tenth of a percent.
A. 918.9% B. 10.9% C. 0.1% D. 37%