Solve.From a 38-inch by 38-inch piece of metal, squares are cut out of the four corners so that the sides can then be folded up to make a box. Let x represent the length of the sides of the squares, in inches, that are cut out. Express the volume of the box as a function of x.
A. V(x) = 4x3 - 152x2 + 1444x
B. V(x) = 4x3 - 152x2
C. V(x) = 2x3 - 114x2
D. V(x) = 2x3 - 114x2 + 38x
Answer: A
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Find the absolute and relative errors.Your credit card applies a finance charge of $24.69. The finance charge should have been $22.28.
A. absolute error: $2.41 relative error: 24.1% B. absolute error: $2.41 relative error: 9.8% C. absolute error: $2.41 relative error: 10.8% D. absolute error: -$2.41 relative error: -10.8%
Solve the problem. Round to the nearest cent as needed.The monthly payments on a $73,000 loan at 13% annual interest are $807.38. How much of the first monthly payment will go toward the principal?
A. $104.96 B. $702.42 C. $16.55 D. $790.83
Solve the problem.Each day the commuter train transports x passengers to or from the city at $1.75/passenger. The daily fixed cost for running the train is $1200. Write an equation that relates the daily profit, P, in dollars to the number of passengers each day. Then use the equation to find the daily profit when the train has 920 passengers in a day.
What will be an ideal response?
Determine the principal value without using a calculator.
2
A. 8 B. Not real number C. -8 or 8 D. -8