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adell [148]
3 years ago
6

At a local grocery store, hamburger meat is normally $3.50 per pound, but this week hamburger meat is on sale for $2.10 per poun

d. What is the percent decrease in the price?
will give brainliest
Mathematics
2 answers:
AysviL [449]3 years ago
8 0

Answer:

I think it would be a 1.40 decrease

Step-by-step explanation:

Luden [163]3 years ago
7 0
It’s a 40% decrease
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Find the directional derivative of f(x,y,z)=z3−x2yf(x,y,z)=z3−x2y at the point (−5,5,2)(−5,5,2) in the direction of the vector v
olga_2 [115]

We are given

f=z^3 -x^2y

Firstly, we can find gradient

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f_x=0 -2xy

f_x=-2xy

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f_y=-x^2

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gradf=(50,-25,12)

now, we are given that

it is in direction of v=⟨−3,2,−4⟩

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|v|=\sqrt{29}

now, we can find unit vector

v'=(\frac{-3}{\sqrt{29} } , \frac{2}{\sqrt{29} } , \frac{-4}{\sqrt{29} })

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dir=(gradf) \cdot (v')

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dir=(50,-25,12) \cdot (\frac{-3}{\sqrt{29} } , \frac{2}{\sqrt{29} } , \frac{-4}{\sqrt{29} })

dir=(-\frac{150}{\sqrt{29} } - \frac{50}{\sqrt{29} } - \frac{48}{\sqrt{29} })

dir=-\frac{248\sqrt{29}}{29}.............Answer



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Answer:

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Reference my work if you're are confused, however, it's really messy so sorry about that.

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