Suppose that the cost function for a commodity is 
dollars. Find the marginal cost at 
units and tell what this predicts about the cost of producing 1 additional unit. Round your answer to two decimal places.
?
A. 5.57. The cost to produce the 4th unit is predicted to be $5.57.
B. 5.00. The cost to produce the 4th unit is predicted to be $5.00.
C. 322.29. The cost to produce the 5th unit is predicted to be $322.29.
D. 6.14. The cost to produce the 5th unit is predicted to be $6.14.
E. 20.00. The cost to produce the 5th unit is predicted to be $20.00.
Answer: D
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Solve the problem.Find the average height of the paraboloid 
above the disk 
in the 
.
A. 
B. 294
C. 
D. 
Solve the linear equation.1.1x - 4.8 = 0.7x - 3.76
A. {2.6} B. {-0.385} C. {2.59} D. {2.574}
Solve.Mike filled his car's gas tank and noted that the odometer read 17,305.7. After the next filling, the odometer read 18,053.0. It took 23.5 gal to fill the tank. How many miles per gallon did the car get?
A. 32.8 mpg B. 31.1 mpg C. 31.8 mpg D. 32.1 mpg
Solve the triangle. Round lengths to the nearest tenth and angle measures to the nearest degree.b = 4, c = 6, A = 80°
A. a = 6.6, B = 63°, C = 37° B. a = 5.6, B = 63°, C = 37° C. a = 6.6, B = 37°, C = 63° D. a = 7.6, B = 37°, C = 63°