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. 18.9 L/min
B. 9.4 L/min
C. 381.6 L/min
D. 0.2 L/min
Answer: B
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Solve the problem.Suppose that the radius r and the circumference C = 2?r of a circle are differentiable functions of t. Write an equation that relates dC/dt to dr/dt.
A. 
= 
B. 
= 2?
C. 
= 2?
D. 
= 2?r
Perform the indicated operations and simplify. Assume that all variables represent positive real numbers.
- 
A. - 
B. - 
C. -3
D. -1.5
Indicate whether the expression is a polynomial. If the polynomial has a specific name - monomial, binomial, or trinomial - give that name.6y4 - 7y3 + 8
A. not a polynomial B. binomial C. trinomial
Find the work performed when the given force F is applied to an object, whose resulting motion is represented by the displacement vector d. Assume the force is in pounds and the displacement is measured in feet.
?
?
A. 160 ft-lb B. 230 ft-lb C. 170 ft-lb D. 190 ft-lb E. 200 ft-lb