Decide whether the graph of the equation opens up, down, to the left, or to the right; and whether it is wider, narrower, or the same shape as the graph of 
(or 
).f(x) = -2x2 - 5x
A. Up; wider
B. Up; narrower
C. Down; narrower
D. Down; wider
Answer: C
Mathematics
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Provide an appropriate response.On a multiple choice test, each question has 3 possible answers. Prove by induction that the number of different ways of completing a test with n questions is 3n.
What will be an ideal response?
Mathematics
Evaluate the surface integral of G over the surface S.S is the dome z = 5 - 6x2 - 6y2, z ? 0; G(x, y, z) = 
A. 50
B. 50?
C. 
?
D. 5?
Mathematics
Determine if the graph represents a function that has an inverse function.
A. does not have an inverse B. has an inverse
Mathematics
Write the first four terms of the sequence.an = 
A. a1 = -3, a2 = 
, a3 = 1, a4 = 
B. a1 = 3, a2 = 
, a3 = 1, a4 = 
C. a1 = -3, a2 = - 
, a3 = 1, a4 = 
D. a1 = 3, a2 = - 
, a3 = 1, a4 = 
Mathematics