Solve the problem.A flare fired from the bottom of a gorge is visible only when the flare is above the rim. If it is fired with an initial velocity of 128 feet per second and the gorge is 240 feet deep, during what interval can the flare be seen? Use the formula h(t) = -16t2 + v0t + h0.
A. The flare can be seen between 9 sec and 11 sec.
B. The flare can be seen up to, but not including, 3 sec.
C. The flare can be seen between 6 sec and 8 sec.
D. The flare can be seen between 3 sec and 5 sec.
Answer: D
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Graph the system of linear inequalities and indicate the solution set.2x + 3y ? 6x - 3y ? 3 
A. 
B. 
C. 
D. 
Solve the problem.Which of the pairs of numbers whose sum is 78 has the largest product?
A. 39 and 39 B. 38 and 40 C. 30 and 48 D. 29 and 49
Solve the problem.Jamil always throws loose change into a pencil holder on his desk and takes it out every two weeks. This time it is all nickels and dimes. There are 2 times as many dimes as nickels, and the value of the dimes is $0.90 more than the value of the nickels. How many nickels and dimes does Jamil have?
A. 6 nickels and 12 dimes B. 5 nickels and 10 dimes C. 12 nickels and 6 dimes D. 7 nickels and 14 dimes
Find the integral.
A. 
ln 
+ C
B. 
ln 
+ C
C. 
ln 
+ C
D. 
ln 
+ C