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3 years ago

Four more than three times a number is greater than twenty-two what is the answer?

Mathematics

1 answer:

Elis [28]3 years ago

7 0

Answer:

4 + 3x > 22?

im pretty sure this is the answer

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What is 15/75 = %/100

Sonbull [250]

Answer: What is the question?

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2 years ago

Suppose f(x,y)=xy, P=(−4,−4) and v=2i+3j. A. Find the gradient of f. ∇f= i+ j Note: Your answers should be expressions of x and

mart [117]

Answer:

a) The gradient of a function is the vector of partial derivatives. Then

$\nabla f=(\frac{\partial f}{\partial x}, \frac{\partial f}{\partial y})=(y,x)=y\hat{i} + x\hat{j}$

b) It's enough evaluate P in the gradient.

$\nabla f(P)=(-4,-4)=-4\hat{i} - 4 \hat{j}$

c) The directional derivative of f at P in direction of V is the dot produtc of $\nabla f(P)$ and v.

$\nabla f(P) v=(-4,-4)\left[\begin{array}{ccc}2\\3\end{array}\right] =(-4)2+(-4)3=-20$

d) The maximum rate of change of f at P is the magnitude of the gradient vector at P.

$||\nabla f(P)||=\sqrt{(-4)^2+(-4)^2}=\sqrt{32}=4\sqrt{2}$

e) The maximum rate of change occurs in the direction of the gradient. Then

$v=\frac{1}{4\sqrt{2}}(-4,-4)=(\frac{-1}{\sqrt{2}},\frac{-1}{\sqrt{2}})= \frac{-1}{\sqrt{2}}\hat{i}-\frac{1}{\sqrt{2}}\hat{j}$

is the direction vector in which the maximum rate of change occurs at P.

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3 years ago

Please help thank u

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Answer:

Step-by-step explanation:

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3 years ago

Evaluate the expression. 4–4÷2

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3 years ago

Ariana is baking chocolate chip cookies for a bake sale. For every 3 cups of flour, she needs 2 cups of sugar. How many cups of

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since she already has 18 cups flour she needs 6 cups of sugar

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2 years ago