Find the x-intercepts (if any) for the graph of the quadratic function.f(x) = -x2 + 13x - 42
A. (6, 0) and (7, 0)
B. (-6, 0) and (-7, 0)
C. No x-intercepts
D. (6, 0) and (-7, 0)
Answer: A
Mathematics
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The scores on a 30-point multiple-choice exam are given in the following frequency table:
What is the mode of the scores on the exam?
A. 26 and 30 B. 24, 28, and 29 C. 26 D. 23
Mathematics
Find all values that make the rational expression undefined. If the rational expression is defined for all real numbers, so state.
A. x = -7
B. x = -49
C. x = 0, x = - 
D. Defined for all real numbers
Mathematics
Find the specified extreme value on the given region.
Maximum of T(x, y) = 5x + y
A. 19 B. 61 C. 41 D. 39
Mathematics
Find the vertices of the ellipse.4x2 + 5y2 + 16x - 30y + 41 = 0
A. (-2, 3 + 
) and (-2, 3 - 
)
B. (2, -3 + 
) and (2, -3 - 
)
C. (-2 + 
, 3) and (-2 - 
, 3)
D. (2 + 
, -3) and (2 - 
, -3)
Mathematics