Find the domain of the rational function.r(x) = 
A. All real numbers except -6 and 2.
B. All real numbers except -2 and 6.
C. All real numbers except -3 and 3.
D. All real numbers except 0 and 3.
Answer: B
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Solve the system by the substitution or the addition method.
A. 
B. (5, 1)
C. Infinite number of solutions
D. No solution
Graph the polar equation.r = 
A. 
B. 
C. 
D. 
Solve the problem.The Ideal Gas Law states that the pressure P of a gas obeys the function 
where n is the number of particles in the sample, T is the Kelvin temperature of the gas, V is the volume of the gas in liters, and k is the constant 1.38 × 10-23. Does the pressure have a local minimum along the line 
If so, what is the value
of the minimum pressure? Give reasons for your answer. Fill in the blank(s) with the appropriate word(s).
Solve the problem. Use a calculator with an LN or a LOG key.The formula y = 1 + 1.4 ln(x + 1) models the average number of free-throws a basketball player can make consecutively during practice as a function of time, where x is the number of consecutive days the basketball player has practiced for two hours. After 72 days of practice, what is the average number of consecutive free throws the basketball player makes?
A. 7 consecutive free throws B. 11 consecutive free throws C. 8 consecutive free throws D. 10 consecutive free throws