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3 years ago

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Express the plane z = x in terms of spherical and cylindrical coordinates

1 answer:

Eddi Din [679]3 years ago

4 0

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Please answer as fast as possible thanks

svp [43]

The correct answer is the 2nd choice because -1/6 is closer to 0 and the surface of the pool would be considered 0. -4/6 is farther away from 0 so it is less.

3 0

3 years ago

Does anyone know how to do this

Julli [10]

Maria = x
Tom = y

Use substitution
x+y=30
2y=x

2y+y=30
3y=30
y=10
Tom is 10 years old.

x+y=30

x+10=30
x=20
Maria is 20 years old.

5 0

3 years ago

Read 2 more answers

. Which ordered pairs in the form (x, y) are solutions to the equation 7x – 5y = 28?

Brut [27]

we know that

If a ordered pair (x,y) is a solution of the equation, then the ordered pair must satisfy the equation

we have the equation

$7x-5y=28$

Let's verify all the cases to determine the solution to the problem.

<u>case A)</u> point $(-6,-14)$

Substitute the values of x and y in the equation

$x=-6\\y=-14$

$7(-6)-5(-14)=28$

$-42+70=28$

$28=28$ -------> is true

therefore

The point $(-6,-14)$ is a solution of the equation

<u>case B)</u> point $(-1,-7)$

Substitute the values of x and y in the equation

$x=-1\\y=-7$

$7(-1)-5(-7)=28$

$-7+35=28$

$28=28$ -------> is true

therefore

The point $(-1,-7)$ is a solution of the equation

<u>case C)</u> point $(4,10)$

Substitute the values of x and y in the equation

$x=4\\y=10$

$7(4)-5(10)=28$

$28-50=28$

$-22=28$ -------> is not true

therefore

The point $(4,10)$ is not a solution of the equation

<u>case D)</u> point $(7,9)$

Substitute the values of x and y in the equation

$x=7\\y=9$

$7(7)-5(9)=28$

$49-45=28$

$4=28$ -------> is not true

therefore

The point $(7,9)$ is not a solution of the equation

therefore

<u>the answer is </u>

$(-6,-14)$

$(-1,-7)$

8 0

3 years ago

Read 2 more answers

28 = 4/5 x - 8 What value of x makes the equation true?

Harrizon [31]

Answer:

x will have to be 45 to make this true

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Two points A (-2, 9) and B (4, 8) lie on a line l. (i) Find the slope of the line l. (2)marks (ii) Find the coordinates of the m

White raven [17]

Answer :

1 (i).
$slope \: = - \frac{1}{6}$
(ii).
$midpoints \: = (1 \: \: \frac{17}{2} )$
(iii) .
$distance \: = \sqrt{37}$
2(i).
$slope \: = 2$
$gradient \: = - \frac{1}{2}$
I Hope it helps :)

8 0

3 years ago