Solve the problem.For its regular delivery service, a parcel service charges 
for the first 5 pounds plus $1.50 for each additional pound. (i) Draw a linear graph that can be used to estimate the cost of parcels weighing 5 to 25 pounds. Use the horizontal axis for the weight and the vertical axis for the cost. (ii) Use the graph to estimate the weight of a parcel which costs 
A. (i) 
(ii) About 17 lb
B. (i) 
(ii) About 7 lb
C. (i) 
(ii) About 12 lb
D. (i) 
(ii) About 20 lb
Answer: A
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?Which of the following are not divisible by 9? ?
A. ?81 B. ?534,924 C. ?6,516 D. ?33,321 E. ?None of the above.
Find T, N, and B for the given space curve.r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 
tk
A. T = 
i + 
j + 
k; N = 
i + 
j; B = 
i + 
j + 
k
B. T = 
i - 
j + 
k; N = 
i + 
j ; B = - 
i + 
j + 
k
C. T = 
i - 
j + 
k; N = 
i + 
j; B = - 
i + 
j + 
k
D. T = 
i - 
j + 
k; N = 
i + 
j; B = - 
i + 
j + 
k
Rotate the axes so that the new equation contains no xy-term. Graph the new equation.x2 + xy + y2 - 3y - 6 = 0
A. 
B. 
Solve the problem.At a state fair truck pull, two pickup trucks are attached to the back end of a monster truck as illustrated in the figure. One of the pickups pulls with a force of 1600 pounds and the other pulls with a force of 3800 pounds with an angle of 45° between them. With how much force must the monster truck pull in order to remain unmoved? HINT: Find the resultant force of the two trucks. Round to the nearest tenth. 
A. The truck must pull with a force of 2416.9 lb. B. The truck must pull with a force of 5059.5 lb. C. The truck must pull with a force of 2898.5 lb. D. The truck must pull with a force of 4799.8 lb.