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3 years ago

Helppppppppp! Anyone know the answer

Mathematics

1 answer:

Irina18 [472]3 years ago

7 0

Answer:

that depends what is the question

Step-by-step explanation:

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Mr .moris wrote a double fact.it has a sum greater than 6.the numbers that he added are each less than 6.what fact might he have

marta [7]

How could have written 5 and 4. But there are more answers.

5 0

3 years ago

(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

3 years ago

Translate the sentence into an equation.

lozanna [386]

9w - 7 = 5

9w= 5+7

9w=12

w= 4/3 or 1.33

3 0

3 years ago

Find x.<br> I had been stuck on this one for awhile

Arlecino [84]

Answer:

34 degrees

Step-by-step explanation:

ok so 180-111=69

then the opposite angle from 37 is also 37

the the missing angle from the left triangle has to be 103

so then the angle below x is 77

and so we know x = 34 degrees

I hope that made sense.

4 0

3 years ago

Simplify the expression.<br> 3(2+q)+15 simplified is

chubhunter [2.5K]

Answer:

3q+21

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers