Find the coordinates of the vertex and the direction of opening of each parabola.y = (x - 4)2 - 4
A. (4, -4) opens upward
B. (4, 4) opens upward
C. (-4, 0) opens downward
D. (0, -4) opens downward
Answer: A
Mathematics
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Perform the operations indicated. Write your answer in simplest form.
÷ 
A. 
B. 
C. - 
D. - 
Mathematics
Simplify
Mathematics
Find the mode of the set of numbers.109, 141, 156, 109, 188, 199, 162
A. 86 B. 109 C. 141 D. 156
Mathematics
Answer the question.Sue has taken four exams so far in her History course. Her scores are 98.0, 78.2, 93, and 87.5. What is the average of these scores?
A. 91.375 B. 89.175 C. 87.775 D. 89.325
Mathematics