3 years ago

If u=f(x,y) where x=(e^s)(cos(t)) and y=(e^s)(sin(t)), show that (du/dx)^2 + (du/dy)^2 = (e^(-2s))((du/ds)^2+(du/dt)^2)) ...?

1 answer:

8 0

no usually the problem is set up this way f(x,y)= z if z= w/e ( it has an x and a y) where y= (something that has s and t) and x= ( something that has s and t) but your question does not make sense to me. Are you sure you wrote it right?

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I need help to the attachment down below, first answer gets 5 stars and a thanks!

Gekata [30.6K]

Answer:

base = 15 units

Step-by-step explanation:

We are given area of a triangle = 52.5 sq. units

Height is given as 7 and we have to find the base.

Using formula for area of triangle:

Area of triangle = $\frac{base*height}{2}$

$52.5 = \frac{base*height}{2}$

$52.5 = \frac{base*7}{2}$

52.5 * 2 = base × 7

105 = base × 7

base = 15

3 0

3 years ago

Read 2 more answers

Is -3.7 less than,greater than or equal to -3.8 ?<br>

Kisachek [45]

-3.7 is greater than -3.8, but is it not less than of equal to -3.8

4 0

3 years ago

In the equation, y = 0.007x, how many inches of rain falls in 6 minutes?<br>

djverab [1.8K]

Answer:

X represents the value you can multiply with the slope to get the answer.

y = 0.007x

= 0.007(6)

= 0.042

Therefore, 0.042 inches of rain falls in 6 minutes.

7 0

3 years ago

I know it's late but im having trouble in math.I need an exper to help for BRAINLEST and extra points

frez [133]

Answer:

B'(- 2, 2 )

Step-by-step explanation:

Given the translation rule (x, y ) → (x + 3, y - 2 )

This means add 3 to the original x- coordinate and subtract 2 from the original y- coordinate, that is

B(- 5, 4 ) → B'(- 5 + 3, 4 - 2 ) → B'(- 2, 2 )

8 0

3 years ago

Which function has a graph that intersects the y-axis at 3?

igomit [66]

Answer:

Ummmmm any graph can

Step-by-step explanation:

You did not list any options, please list options or add a pic then i will edit my answer

5 0

3 years ago