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34kurt
3 years ago
15

Prove, using the second derivative, that the general quadratic y= ax^2+bx+c, is:

Mathematics
1 answer:
Nonamiya [84]3 years ago
7 0

Answer:

dy/dx = 2ax + b

d²y/dx² = 2a

2a < 0

When a < 0

(So concave)

2a > 0

When a > 0

(So convex)

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3 years ago
Question 7: Which of the following statements is true?
yawa3891 [41]

Problem 7)

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-----------------

To have a Euler circuit, each vertex must have an even number of paths connecting to it. This does not happen with graph 1 since vertex A and vertex D have an odd number of vertices (3 each). The odd vertex count makes it impossible to travel back to the starting point, while making sure to only use each edge one time only.

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================================================

Problem 8)

The answer is choice B) 5

-----------------

Work Shown:

abc base 2 = (a*2^2 + b*2^1 + c*2^0) base 10

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4 0
3 years ago
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