Determine the value of x or ? as requested. Round results to an appropriate number of significant digits.Determine the value of x.
A. 86.9 m
B. 4.8 m
C. 31.4 m
D. 55.5 m
Answer: C
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Find the value of the polynomial function.f(x) = 3x2 - 4x + 6; f(-1)
A. 13 B. 5 C. 7 D. -1
Sketch the curve.y2 = 20x
A. 
B. 
C. 
D. 
Simplify.(-42 ÷ 6) - (8 ÷ 8)
A. -8 B. -7 C. 6 D. 7
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 3200 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 4181.0 lb. B. The truck must pull with a force of 2357.8 lb. C. The truck must pull with a force of 4476.7 lb. D. The truck must pull with a force of 1731.8 lb.