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3 years ago

Can someone please help???

Mathematics

1 answer:

alexira [117]3 years ago

4 0

Still need help??? lmk

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You are a truck driver for a distribution center. You drove 30 hours in 5 days. What is your per day average?

andreyandreev [35.5K]

30/5=6. Your daily average is 6 hours.

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3 years ago

The sum of 2 and a number divided by 3 is greater than -10

Harrizon [31]

Answer:

$\frac{x}{3} + 2 > -10$

Step-by-step explanation:

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2 years ago

Gaston is buying frult at a local grocery store. This table shows the cost per pound of each type of fruit. Match each

yuradex [85]

Answer:

bananas=$12.72

grapes=$9.48

oranges=$5.85

apples=$5.36

Step-by-step explanation:

To find the total cost for each fruit you would multiply the number of fruit by the cost.

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grapes=4*2.37=$9.48

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3 years ago

You can walk 1 1/2 miles in 1/2 hour what is your average speed

evablogger [386]

Let’s turn the mixed number into a fraction
3/2 x 1/2
Multiply across
3/4
Hope this helps!

8 0

3 years ago

Read 2 more answers

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,

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