Find the vertex and axis of symmetry of the graph of the function.f(x) = 5x2 + 10x + 7
A. (-2, 17) ; x = -2
B. (-1, 2) ; x = -1
C. (1, 22) ; x = 1
D. (2, 47) ; x = 2
Answer: B
Mathematics
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A. 10 B. 1 C. 5 D. 20
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Write the indicated term of the binomial expansion.(x + 2y)11; 9th term
A. 21,120x8y3 B. 42,240x3y8 C. 21,120x3y9 D. 42,240x8y3
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Solve the problem.Since cos 
= 
and 
is in the interval [0, ?], cos-1 
=
A. 
B. 
C. - 
D. 4
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Insert < or > to make the statement true.
___ 
A. 
< 
B. 
> 
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