The graph of a piecewise-defined function is given. Write a definition for the function.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Answer: A
Mathematics
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Solve the problem.Find a unit vector perpendicular to plane PQR determined by the points P(2, 1, 3), Q(1, 1, 2) and R(2, 2, 1).
A. 
(-i - 2j - k)
B. 
(i - 2j - k)
C. 
(i - 2j + k)
D. 
(i - 2j - 2k)
Mathematics
Solve the inequality. Express your answer using interval notation.8x - 5 > 7x - 9
A. (-?, -4]
B. [-4, ?)
C. (-4, ?)
D. (-14, ?)
Mathematics
Use the intermediate value theorem to approximate the one real zero on the given interval. Round your answer to two decimal places.f(x) = x4 - x3 - 7x2 + 5x + 10; [2 , 3]
A. 2.45 B. -2.45 C. 2.24 D. -2.24
Mathematics
Provide an appropriate response.Solve the inequality: 
< 0.
Fill in the blank(s) with the appropriate word(s).
Mathematics