Tell whether the graph opens upward or downward and whether the graph is wider, narrower, or the same as f(x) = x2.f(x) = -3x2
A. Upward, wider
B. Downward, narrower
C. Upward, narrower
D. Downward, wider
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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Calculate the flux of the field F across the closed plane curve C.F = x2i + y2j; the curve C is the closed counterclockwise path around the triangle with vertices at 
and 
A. - 2 B. 0 C. 30 D. 10
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Multiply the polynomials.(x + 4)(x2 - x + 7)
A. x3 + 28 B. x3 + 3x2 + 28 C. x3 + 5x2 + 11x + 28 D. x3 + 3x2 + 3x + 28
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Multiply and simplify.13 ? 
A. 104
B. 
C. 
D. 
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