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3 years ago

8

for her sculpture fetima cut 5 pieces of wire in the following lenghts 1.3m 4.2m 2.8m 5.9m 8.1m how much wirw did she use all al

ong

1 answer:

Stella [2.4K]3 years ago

3 0

1.3+4.2+2.8+5.9+8.1=?
3+2+8+9+1=23
carry the 2 over to the ones place
1+4+2+5+8=2=20
add the 2
22
drop the decimal
22.3m

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We need to take the derivative with respect of x and y, and equal to zero to find the local minimums.

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Now, let's find the critical point again, as we did above.

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Now, we can see that at point (3/4,0) we have the coldest value of temperature $T(\frac{3}{4},0) = -9/16$ . On the other hand, at the point $-(3/4),\frac{\sqrt{7}}{4})$ we have the hottest value of temperature, it is $T(-(3/4),\frac{\sqrt{7}}{4})=\frac{5}{16}$ .

I hope it helps you!

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