Solve the problem.The cost for labor associated with fixing a washing machine is computed as follows: There is a fixed charge of $25 for the repairman to come to the house, to which a charge of $29 per hour is added. Find an equation that can be used to determine the labor cost, C(x), of a repair that takes x hours.
A. C(x) = 25 + 29x
B. C(x) = 25 - 29x
C. C(x) = 29 + 25x
D. C(x) = ( 25 + 29) x
Answer: A
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Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = 30xz5i + 9yj - 5z6k; D: the solid wedge cut from the first quadrant by the plane and the elliptic cylinder x2 + 16y2 = 49
A.
B.
C.
D.
Solve.Find the discount rate when the original price is $125.00 and the amount of the discount is $25.00.
A. 8% B. 80% C. 1% D. 20%
Write a matrix equation equivalent to the system of equations. x + y + z = 3 4x + 4y + 3z = 2-5x + 5y + 2z = -3
A. =
B. =
C. =
D. =
Solve the problem.The value of a particular investment follows a pattern of exponential growth. In the year 2000, you invested money in a money market account. The value of your investment t years after 2000 is given by the exponential growth model A = 1200e0.06t. How much did you initially invest in the account?
A. $1200.00 B. $72.00 C. $1274.20 D. $600.00