The quotient of a number and three is equal to negative eight

Mathematics

1 answer:

GuDViN [60]3 years ago

7 0

There are multiple answers to this

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PLZ HELP ME!!! NEED HELP ASAP!!!

Kay [80]

Answer:

it would be d

Step-by-step explanation:

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3 years ago

Shameka is tossing acorns into a hole. She started with 800 acorns in the hole. On average, she gets 75 acorns per hour in the h

gulaghasi [49]

$A=75h$
$75h \leq 800$
$A \leq 800$

4 0

2 years ago

Read 2 more answers

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MakcuM [25]

The answer is C because x2 is a parabola

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2 years ago

Find the solution of the system of equations. 3x+3y= 3x+3y= \,\,42 42 x-3y= x−3y= \,\,-22 −22

oee [108]

Answer:

x = 5 y = 9

Step-by-step explanation:

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2 years ago

Let φ(x, y) = arctan (y/x) .

Alexandra [31]

Answer:

a) $\large F(x,y)=(-\frac{y}{x^2+y^2},\frac{x}{x^2+y^2})$

b) $\large \mathbb{R}^2-\{(0,0)\}$

c) the points of the form (x, -x) for x≠0

Step-by-step explanation:

If φ(x, y) = arctan (y/x), the vector field F = ∇φ would be

$\large F(x,y)=(\frac{\partial \phi}{\partial x},\frac{\partial \phi}{\partial y})$

On one hand we have,

$\large \frac{\partial \phi}{\partial x}=\frac{\partial arctan(y/x)}{\partial x}=\frac{-y/x^2}{1+(y/x)^2}=-\frac{y/x^2}{1+y^2/x^2}=\\\\=-\frac{y/x^2}{(x^2+y^2)/x^2}=-\frac{y}{x^2+y^2}$

On the other hand,

$\large \frac{\partial \phi}{\partial y}=\frac{\partial arctan(y/x)}{\partial y}=\frac{1/x}{1+(y/x)^2}=\frac{1/x}{1+y^2/x^2}=\\\\=\frac{1/x}{(x^2+y^2)/x^2}=\frac{x}{x^2+y^2}$