Find the domain of f. Write your answer in interval notation.f(x) = 
A. (-?, 0)
B. (-?, ?)
C. 
D. (0, ?)
Answer: B
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Classify the triangle as equilateral, isosceles, or scalene. Then classify it as right, obtuse, or acute.
A. Equilateral; obtuse B. Scalene; right C. Scalene; obtuse D. Equilateral; right
Determine which value(s), if any, must be excluded from the domain of the variable in the expression.
A. x = -9 B. x = 9, x = 8 C. x = 9 D. none
Find the standard form of the equation of the parabola.Focus at (6, -2), directrix y = -8
A. (x - 6)2 = 12(y + 5) B. (y + 2)2 = 12(x - 6) C. (x + 2)2 = 12(y + 5) D. (x - 6)2 = 12(y + 2)
Solve the problem.To get credit for graduation, Brittany completed 20 hours of community service. She worked at a soup kitchen for 
of the time. She picked up litter along highways for 
of the time. The rest of the hours she spent tutoring younger children after school. How much time did Brittany spend tutoring?
A. 5
hours
B. 7
hours
C. 5
hours
D. 6
hours