Find the indicated sum.-3 + 1 + 5 + 9 + 13 + . . . + (4n - 7)
A. n(4n - 7)
B. n(2n - 5)
C. n(4n + 7)
D. n(2n + 5)
Answer: B
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Simplify the difference quotients 
and 
for the following function. Rationalize the numerator when necessary.f(x) = 3x3
A. 3x2 + 3xh + 3h2; 9x2 + 9ax + 9a2 B. 9x2 + 9xh + 3h2; 3x2 + 3ax + 3a2 C. 9x2 - 9x - 3h; 3x2 - 3ax - 3a2 D. 3x2 + 3xh + 3h2; 3x2 + 9ax + 9a2
Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve 
- 5 ? x ? 5, about the x-axis (dimensions are in feet). If a cubic foot holds 7.481 gallons and the helicopter gets 3 miles to the gallon, how many additional miles will the helicopter be able to fly once the tank is installed (to the nearest mile)?
A. 376 B. 125 C. 94 D. 188
Find the area of the specified region.Inside the outer loop and outside the inner loop of the limacon r = 8 cos ? - 4
A. 16(? + 3
)
B. 8(4? + 3
)
C. 
(4? - 3
)
D. 8(2? - 3
)
A mouse is placed at random in one of five compartments of a maze. The probability of it going to another compartment is given in the following transition matrix. Using this information, solve the problem.1 2345
Find the probability that a mouse ends up in compartment 5, if it started in compartment 5.
A. 0.2 B. 0 C. 1 D. 0.5