Use the FOIL method to find the products.(x - 8)(5x - 6)
A. 5x2 - 46x - 46
B. 5x2 - 48x + 48
C. 5x2 - 46x + 48
D. 5x2 + 48x - 46
Answer: C
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Find the potential function f for the field F.F = 7x6y5z3i + 5x7y4z3j + 3x7y5z2k
A. f(x, y, z) = x21y15z9 + C
B. f(x, y, z) = 
C. f(x, y, z) = x7y5z3 + C
D. f(x, y, z) = x7y5z3 + 5x7y4z3 + 3x7y5z2 + C
Solve the problem.A radio transmission tower is 140 feet tall. How long should a guy wire be if it is to be attached 6 feet from the top and is to make an angle of 20° with the ground? Give your answer to the nearest tenth of a foot.
A. 149.0 ft B. 142.6 ft C. 391.8 ft D. 409.3 ft
Perform the indicated arithmetic.-2
? 
A. 6
B. 6
C. 7
D. -7
Solve the problem.Determine whether the ordered triple (-3, -1, 4) is a solution of the system of equations.2x - 2y - 3z = -164x - 3y + 3z = 3 x + y - 5z = -24
A. No B. Yes