Solve the logarithmic equation.log (x - 9) = 1 - log x
A. -10, 1
B. -10
C. 10
D. -1, 10
Answer: C
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Solve the problem.The chart represents the amount of fuel consumed by a machine used in manufacturing. The machine is turned on at the beginning of the day, takes a certain amount of time to reach its full power (the point at which it uses the most fuel per hour), runs for a certain number of hours, and is shut off at the end of the work day. The fuel usage per hour of the machine is represented by a periodic function. What is the period in hours of this function?
A. Period = 7 hours B. Period = 125 hours C. Period = 4 hours D. Period = 14 hours
If the following is a polynomial function, then state its degree and leading coefficient. If it is not, then state this fact.f(x) = -10x5 - 8x4 + 1
A. Not a polynomial function. B. Degree: 9; leading coefficient: -10 C. Degree: -10; leading coefficient: 5 D. Degree: 5; leading coefficient: -10
Use the square root property to solve the quadratic equation.2y2 - 8y + 3 = 0
A. -2 ± 
B. 2 ± 
C. -2 ± 
D. 2 ± 
Solve the problem.In a science class containing 59 students, there are 11 freshmen, 14 sophomores, 2 juniors, and the rest are seniors. What fraction of the class is seniors?
A. 
B. 
C. 
D. 