Solve the problem.A rectangular piece of cardboard measuring 18 inches by 49 inches is to be made into a box with an open top by cutting equal size squares from each corner and folding up the sides. Let x represent the length of a side of each such square. For what value of x will the volume be a maximum? If necessary, round to 2 decimal places.
A. 21.18 in.
B. 18.32 in.
C. 36.64 in.
D. 4.01 in.
Answer: D
Mathematics
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Evaluate the integral.
A. 
(e - 1)2
B. 
(e - 1)2
C. 
(e2 - e)2
D. 
(e2 - e)2
Mathematics
Estimate the value of the quantity.The table gives dye concentrations for a cardiac-output determination. The amount of dye injected was 
Plot the data and connect the data points with a smooth curve. Find the area under the curve using rectangles. Use this area to estimate the cardiac output.
Dye concentration (mg/L)
Time (sec)
A. 8.1 L/min B. 222.7 L/min C. 0.1 L/min D. 16.2 L/min
Mathematics
Rewrite as an equivalent exponential equation. Do not solve.log31 = 0
A. 03 = 1 B. 10 = 3 C. 31 = 0 D. 30 = 1
Mathematics
Find the value of the exponential expression.24
A. 6 B. 16 C. 8 D. 5
Mathematics