Determine whether the pair of lines is parallel, perpendicular, or neither.9x - 7y = 4 and 9x - 7y = 7
A. parallel
B. perpendicular
C. neither
Answer: A
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Solve.Two forces of 37 and 45 N (newtons) act on an object at right angles. Find the magnitude of the resultant and the angle that it makes with the smaller force.
A. 58 N, 56° B. 58 N, 51° C. 58 N, 39° D. 3394 N, 51°
Solve the problem.Kate's kite descends along the curve of y = -2x2 + 20. What is the angle of the descent (with the vertical) when 
A. 83.5° B. 81.2° C. 6.5° D. 4.5°
Indicate whether the equation has no solution or is true for all real numbers. If neither is the case, solve for the variable.
- 14 = 
A. {x|x is a real number}
B. ?
C. {0}
D. 
A truck must drop off furniture at 4 different homes (A, B, C, and D) as shown in the graph below, starting and ending at A. The numbers on the edges represent distances (in miles) between locations. The truck driver wants to minimize the total length of the trip.
The repetitive nearest-neighbor tour starting with vertex A is given by:
A. A, C, D, B, A. B. A, B, D, C, A. C. A, C, B, D, A. D. A, D, C, B, A. E. none of these