Find 
.y = (x2 + 2x)ln x
A. (x2 + 2x)ln x
B. 
+ 
C. (x2 + 2x)ln x
D. 
+ 
Answer: C
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Solve using the quadratic formula. Use a calculator to approximate the solution to three decimal places.
x2 + 
x - 
= 0
A. 0.75 B. -1.25, 0.75 C. -1 D. -0.781, 1.281
Find the sum.78.405 + 10.6 + 6.167 + 40.49
A. 135.762 B. 136.662 C. 135.672 D. 135.662
Graph the system of inequalities and the points of intersection of the graphs. Label the points of intersection with their coordinates.
A. O(0, 0), A(0, -8)
B. O(0, 0), A(0, -8)
C. O(0, 0), A(0, -8)
D. O(0, 0), A(0, -8)
Solve the problem.The number of students infected with the flu on a college campus after t days is modeled by the function 
When will the number of infected students be 220?
A. About 8 days B. About 16 days C. About 14 days D. About 12 days