Determine the vertex of the graph of f.f(x) = x2 + 2
A. (0, -2)
B. (0, 2)
C. (2, 0)
D. (-2, 0)
Answer: B
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Solve the triangle ABC. Round each answer to the nearest tenth when necessary.
A. B ? 32.8° , C ? 27.2°, c ? 33.8 m B. B ? 34.1° , C ? 25.9°, c ? 33.8 m C. B ? 32.8° , C ? 27.2°, c ? 30.4 m D. B ? 34.1° , C ? 25.9°, c ? 32.3 m
Perform the desired operation. Write the answer in the form a + bi.5(3 - 6i)
A. 15 - 30i B. 3 - 30i C. 15 + 30i D. 15i - 6i
For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 
x2(x2 - 5)(x - 1)
A. 0, multiplicity 2, crosses x-axis;
1, multiplicity 1, touches x-axis
B. 0, multiplicity 2, crosses x-axis;
1, multiplicity 1, touches x-axis;
, multiplicity 1, touches x-axis;
-
, multiplicity 1, touches x-axis
C. 0, multiplicity 2, touches x-axis;
1, multiplicity 1, crosses x-axis
D. 0, multiplicity 2, touches x-axis;
1, multiplicity 1, crosses x-axis;
, multiplicity 1, crosses x-axis;
-
, multiplicity 1, crosses x-axis
Find the probability of the event.A bag contains 9 red marbles, 8 blue marbles, and 4 green marbles. A marble is randomly selected from the bag. What is the probability that it is blue?
A. 
B. 
C. 
D. 