3 years ago

Could I have gotten this right or is this wrong

1 answer:

5 0

You are very correct

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Anna [14]

The derivative of $f(x,y,z)$ in the direction of a vector $\mathbf u$ is

$\nabla_{\mathbf u}f=\nabla f\cdot\dfrac{\mathbf u}{\|\mathbf u\|}$

With $f(x,y,z)=xyz$ , we get

$\nabla f=(yz,xz,xy)$

and $\mathbf u=(-1,-2,2)$ ,

$\|\mathbf u\|=\sqrt{(-1)^2+(-2)^2+2^2}=3$

Then

$\nabla_{(-1,-2,2)}f(3,3,9)=(27,27,9)\cdot\dfrac{(-1,-2,2)}3=-21$

8 0

3 years ago

saul85 [17]

Answer:

The answer is 144,5

Step-by-step explanation:

144,5/170×100 =85%

4 0

3 years ago

miv72 [106K]

The equation would be 2x+3 so when you plug it in it's 2(-2)+3 which simplify to -4+3 which is -1

5 0

3 years ago

Neko [114]

The slope is 2 and the intercept is -3

3 0

2 years ago

Maurinko [17]

M<40 is false statement.

As M equals at least $350 which is greater than $40

4 0

3 years ago