All categories

2 years ago

1+1? i'm just doing this to set up my acc lol

Mathematics

2 answers:

charle [14.2K]2 years ago

8 0

2 ;) was this helpful? mark me as the best!

lutik1710 [3]2 years ago

3 0

It is always 2 XD welcome

You might be interested in

(b) dy/dx = (x - y+ 1)^2

Elanso [62]

Substitute $v(x)=x-y(x)+1$ , so that

$\dfrac{\mathrm dv}{\mathrm dx}=1-\dfrac{\mathrm dy}{\mathrm dx}$

Then the resulting ODE in $v(x)$ is separable, with

$1-\dfrac{\mathrm dv}{\mathrm dx}=v^2\implies\dfrac{\mathrm dv}{1-v^2}=\mathrm dx$

On the left, we can split into partial fractions:

$\dfrac12\left(\dfrac1{1-v}+\dfrac1{1+v}\right)\mathrm dv=\mathrm dx$

Integrating both sides gives

$\dfrac{\ln|1-v|+\ln|1+v|}2=x+C$

$\dfrac12\ln|1-v^2|=x+C$

$1-v^2=e^{2x+C}$

$v=\pm\sqrt{1-Ce^{2x}}$

Now solve for $y(x)$ :

$x-y+1=\pm\sqrt{1-Ce^{2x}}$

$\boxed{y=x+1\pm\sqrt{1-Ce^{2x}}}$

3 0

2 years ago

Solve for b2 in A=1/2 h(b1+b2), if A=16, h=4, and b1=3

icang [17]

Answer:

$b_{2}$ = 5

Step-by-step explanation:

Substitute the given values into the formula

16 = $\frac{1}{2}$ × 4(3 + $b_{2}$ )

16 = 2(3 + $b_{2}$ ) ( divide both sides by 2 )

8 = 3 + $b_{2}$ ( subtract 3 from both sides )

5 = $b_{2}$

4 0

2 years ago

Help me with geometry

melisa1 [442]

Answer:

What question do you need help with?

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Help I dont get it and im stuck

ohaa [14]

Answer:

B) 20

Step-by-step explanation:

Don't think to hard about the answer, all the numbers and text can be distracting.

Look at only the length of both Rachel 12 and Amos 16

Now use the Pythagorean theorem to find the unknown side in this right triangle.

$a^{2} +b^{2} =c^{2} \\12^{2} +16^{2} =c^{2}$

6 0

2 years ago

Read 2 more answers

What is the formula for the area of a circle?

elixir [45]

D trust me plz give points

3 0

2 years ago

Read 2 more answers