Solve the problem.From a point on a straight road, two cars are driven in opposite directions, one at 25 miles per hour and the other at 39 miles per hour. In how many hours will they be 320 miles apart?
A. 4 hours
B. Not enough information
C. 6 hours
D. 5 hours
Answer: D
Mathematics
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Simplify the algebraic expression.-4(x + y)
A. -4x + y B. -4x + 4y C. -4x - 4y D. -4xy
Mathematics
Find the potential function f for the field F.F = -
i - 
j - 
k
A. f(x, y, z) = - 
+ C
B. f(x, y, z) = 
+ C
C. f(x, y, z) = 
+ C
D. f(x, y, z) = 
+ C
Mathematics
Factor completely. If unfactorable, indicate that the polynomial is prime.x3 - 36x + 4x2 - 144
A. prime B. (x2 - 36)(x + 4) C. (x + 6)(x - 6)(x + 4) D. (x - 6)2(x + 4)
Mathematics
Find the quotient.
A. 0 B. Undefined C. 1 D. 10
Mathematics