Find the domain of the rational function.f(x) = 
A. All real numbers except 0
B. All real numbers except 6 and 8
C. All real numbers except -6 and -8
D. All real numbers except 2 and -2
Answer: B
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Use scientific notation to solve the problem.A company produced 925,000 small appliances in one year and made a profit of $8,620,000. What was the profit on each appliance?
A. $9.32 x 102 B. $9.32 C. $1.07 D. $1.07 x 10-1
Find the value of s in the interval [0, ?/2] that makes the statement true. Round to four decimal places.sec s = 3.7404
A. 0.2706 B. 4.9830 C. 1.3002 D. 1.8414
Solve.The radioactive decay of radium 226 can be described by the equation 
where C is the original amount of radium and A is the amount of radium remaining after t years. If 27 milligrams of radium are sealed in a container now, how much radium will be in the container after 100 years. Round to the nearest thousandth.
A. 25.869 mg B. 26.988 mg C. 1.202 mg D. 28.18 mg
Find the vertex, the focus, and the directrix of the parabola.(y - 4)2 = 16(x - 1)
A. V: (4, 1); F: (8, 1); D: x = 0 B. V: (1, 4); F: (-3, 4); D: x = 5 C. V: (-1, -4); F: (3, -4); D: x = -5 D. V: (1, 4); F: (5, 4) ; D: x = -3