Solve the problem.A truck rental company charges $39, plus $0.07 per mile to rent a moving truck for a day. If x represents the number of miles driven and f(x) represents the total cost to rent the truck for a day, write a linear function that models the situation.

A. f(x) = 0.07x - 39
B. f(x) = 0.07x + 39
C. f(x) = 39x + 0.07
D. f(x) = 0.07x + 39x


Answer: B

Mathematics

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Use L'Hpital's rule to find the limit.

A. ? B. 1 C. -? D. 0

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Find f so that F = ?f. If the fuction is not conservative state so.F(x, y, z) = 2xex2 + y2i + 2yex2 + y2j

A. f(x, y, z) = 2ex2 + y2 + C
B. f(x, y, z) =  + C
C. f(x, y, z) = ex2 + ey2 + C
D. f(x, y, z) = ex2 + y2 + C

Mathematics

Find the modulo class to which the number belongs for the given modulo system.-14, mod 4

A. 0 B. 2 C. 1 D. 3

Mathematics

Solve the problem.You have 84 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area.

A. length: 21 ft, width: 21 ft B. length: 63 ft, width: 21 ft C. length: 42 ft, width: 21 ft D. length: 42 ft, width: 42 ft

Mathematics