a.
b.
The metal obey this law for values of strain until 0.05, where we have a linear relationship (each increase of 0.01 in the strain causes an increase of 100 in the stress). After this point, we don't have a linear relationship anymore.
c. Since an increase of 0.01 in the strain causes an increase of 100 in the stress, the slope is:

Now, calculating the coefficient b (y-intercept), we have:

So the equation is:

d.
The maximum value of stress is 560, and occurs at strain = 0.07.
Answer:
√(36+9) = √45 = 6.7 this is the answer, just estime it
200 cm is 2 m so 40m/2m = 20. Thus she will have 20 pieces
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Answer:
28%
Step-by-step explanation:
I did it and it was right