Solve the problem.A constant force F = 18i + 26j moves an object from the point P = (6, 4) to the point Q = (2, 12), where units are in pounds and feet. Find the work done by the force.
A. 228 ft-lb
B. 136 ft-lb
C. -4 ft-lb
D. 4 ft-lb
Answer: B
Mathematics
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 42 ? 45
A. 262,144 B. 16,777,216 C. 16,384 D. 1,048,576
Mathematics
Use "intersect" on a graphing calculator to solve the equation. Round to two decimal places, if necessary.3(x - 3) = 5(x - 4)
A. -0.5 B. 0.5 C. 5.5 D. -5.5
Mathematics
Solve the inequality.x2 - 64 ? 0
A. (-?, -8] or [8, ?) B. (-?, -64] or [64, ?) C. [-64, 64] D. [-8, 8]
Mathematics
Evaluate the integral using the given substitution.
dx, u = 2x2
A. sin(2x2) + C
B. 
sin (2x2) + C
C. 
sin (2x2) + C
D. 
sin (u) + C
Mathematics