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3 years ago

8% more of 2.90 is....?

Mathematics

2 answers:

Mariulka [41]3 years ago

7 0

Hey the answer is 3.132!!!
hope i helped!!! :))))

Oduvanchick [21]3 years ago

4 0

You could calculate 8% of 2.90 and then add it to the 2.90.

0.08*2.09+2.09

This is basically the same as:

1.08*2.09 = 2.2572

2.2572 is the answer.

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Given the Homogeneous equation x^2ydy+xy^2dx=0, use y=ux, u=y/x and dy=udx+xdu to solve the differential equation. Solve for y.

scZoUnD [109]

Answer:

$y=\frac{C}{x}$ .

Step-by-step explanation:

Given homogeneous equation

$x^2ydy+xy^2dx=0$

$\frac{\mathrm{d}y}{\mathrm{d}x}=-\frac{xy^2}{x^2y}$

Substitute y=ux , $u=\frac{y}{x}$

$\frac{\mathrm{d}y}{\mathrm{d}x}=-\frac{y}{x}$

Now,

$u+x\frac{\mathrm{d}u}{\mathrm{d}x}=\frac{\mathrm{d}y}{\mathrm{d}x}$

$u+x\frac{\mathrm{d}u}{\mathrm{d}x}=-u$

$\frac{\mathrm{d}u}{\mathrm{d}x}=-2u$

$\frac{du}{u}=-\frac{dx}{x}$

Integrating both side we get

lnu=-2lnx+lnC

Where lnC= integration constant

$lnu+ln{x}^2=lnC$

$lnux^2=lnC$

Cancel ln on both side

$ux^2=C$

Substitute $u=\frac{y}{x}$

Then we get

xy=C

$y=\frac{C}{x}$ .

Answer: $y=\frac{C}{x}$ .

8 0

3 years ago

Answers or correcting please

Mariulka [41]

Answer:

Looks right to me! Great work!

4 0

3 years ago

Which pair of functions are inverses of each other?

klio [65]

f(x) = 10x -5 and g(x) = (x+5)/10 are inverses of each other , Option D is the correct answer.

<h3>What is a Function ?</h3>

A function is a mathematical statement which relates two variables , a dependent and an independent variable.

The inverse of a function is found by replacing every y by x and vice versa , and then solve for y

The equation

f(x) = 4/x - 3

y= 4/x -3

Replacing y by x

x = 4/y -3

x +3 = 4/y

y = 4/(x+3)

Which do not correlate with the given inverse

f(x) = 10x -5

y = 10x -5

for finding inverse

10y -5 = x

10y = x+5

y = (x+5)/10

g(x) = (x+5)/10

Therefore , Option D is the correct answer.

To know more about Function

brainly.com/question/12431044

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3 0

2 years ago

Mrs Nelson bought a 2-gallon container of ice cream. How many 2-fl-oz scoops of ice cream can be served from this container?

borishaifa [10]

128 times 2 is 256 divided by 2 is 128 scoops of ice cream

6 0

3 years ago

Identify the rule for the following pattern:<br> 99, 90, 81...

PilotLPTM [1.2K]

The pattern is subtracting 9

5 0

3 years ago