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4 years ago

Solve the given differential equation by separation of variables. y ln x dx dy = y + 1 x 2

Mathematics

1 answer:

gayaneshka [121]4 years ago

6 0

Implicit differentiation? Clarify what y+1*2 is please

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True or false: in building a confidence interval for a proportion you can cut the margin of error in half (from e to e/2 by doub

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I think this is false. p +/- z*sqrt (pq/n) . Notice that the formula has sqrt of n.

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3 years ago

In 2010, the number of clown costumes sold at a single costume shop was 10. By 2015, that number had grown to 40. Assuming a con

Black_prince [1.1K]

Answer:

I would say the average sale is 15.

Step-by-step explanation: Please brainliest?

8 0

3 years ago

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Find the common ratio of the geometric sequence 4, -12,36,...

yulyashka [42]

Step-by-step explanation:

the common ratio of the geometric sequence 4, -12,36,...

= -12/4 = -3

8 0

3 years ago

What factors of 48 are multiples of 4

Andrej [43]

They are 4 8 12 16 and 24

7 0

3 years ago

zepelin [54]

Answer:

Multiply the first equation by 3 and multiply the second equation by -2.

This is justified by the multiplication property of equality

Step-by-step explanation:

we have

$2x+5y=7$ ----> first equation

$3x+4y=6$ ----> second equation

step 1

Multiple the first equation by 3 both sides

$3(2x+5y)=3(7)$ -----> by multiplication property of equality

$6x+15y=21$ ----> new first equation

step 2

Multiple the second equation by -2 both sides

$-2(3x+4y)=-2(6)$ -----> by multiplication property of equality

$-6x-8y=-12$ ----> new second equation

step 3

Solve the system of equations by elimination

Adds new first equation and new second equation

$6x+15y=21\\-6x-8y=-12\\-------\\15y-8y=21-12\\7y=9\\y=\frac{9}{7}$

Find the value of x

substitute the value of y in any equation and solve for x

$6x+15y=21$

$6x+15(\frac{9}{7})=21$

$6x=21-\frac{135}{7}$

$6x=\frac{12}{7}$

$x=\frac{2}{7}$

The solution is the point $(\frac{2}{7},\frac{9}{7})$

therefore

Multiply the first equation by 3 and multiply the second equation by -2.

This is justified by the multiplication property of equality

8 0

3 years ago

Read 2 more answers