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2 years ago

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I have f(x)=x^2+x+5. Then (f(x)-f(a))/(x-a).

1 answer:

Salsk061 [2.6K]2 years ago

7 0

Answer:

(f(x) -f(a))/(x -a) = x +a +1

Step-by-step explanation:

(f(x) -f(a))/(x -a) = ((x^2 +x +5) -(a^2 +a +5))/(x -a) = (x^2 -a^2 +x -a)/(x -a)

= ((x -a)(x +a) +(x -a))/(x -a) = x +a +1

(f(x) -f(a))/(x -a) = x +a +1

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Answer:

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Step-by-step explanation:

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$\sigma = \frac{4\cdot F}{\pi\cdot D^{2}}$ (1)

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$D$ - Cross-section diameter, measured in meters.

Please notice that axial force is the weight of the man hanging from wire.

If we know that $F = 800\,N$ and $D = 0.002\,m$ , then the axial stress experimented by the titanium wire is:

$\sigma = \frac{4\cdot (800\,N)}{\pi\cdot (0.002\,m)^{2}}$

$\sigma \approx 2.546\times 10^{8}\,Pa$

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Step-by-step explanation:

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