All categories

3 years ago

9(3+c+4) what is the answer

Mathematics

1 answer:

zzz [600]3 years ago

4 0

Answer:

the answer is 9c+63

Step-by-step explanation:

You might be interested in

I need help with this question. If you find the answer tell me how you got it.

alina1380 [7]

17 3/4 - 2/5x = 4 1/2
-2/5x = 4 1/2 - 17 3/4
-2/5x = 9/2 - 71/4
-2/5x = 18/4 - 71/4
-2/5x = - 53/4
x = (-53/4) / (-2/5)
x = -53/4 * - 5/2
x = 265/8
x = 33 1/8 bottles

6 0

4 years ago

A used CD is a dollar more than one third the price of a new CD. If a new CD costs $18, how much is a used CD

Veseljchak [2.6K]

Answer:

Step-by-step explanation:

8 0

3 years ago

Consider the differential equation x^2 y''-xy'-3y=0. If y1=x3 is one solution use redution of order formula to find a second lin

Anastasy [175]

Suppose $y_2(x)=y_1(x)v(x)$ is another solution. Then

$\begin{cases}y_2=vx^3\\{y_2}'=v'x^3+3vx^2//{y_2}''=v''x^3+6v'x^2+6vx\end{cases}$

Substituting these derivatives into the ODE gives

$x^2(v''x^3+6v'x^2+6vx)-x(v'x^3+3vx^2)-3vx^3=0$

$x^5v''+5x^4v'=0$

Let $u(x)=v'(x)$ , so that

$\begin{cases}u=v'\\u'=v''\end{cases}$

Then the ODE becomes

$x^5u'+5x^4u=0$

and we can condense the left hand side as a derivative of a product,

$\dfrac{\mathrm d}{\mathrm dx}[x^5u]=0$

Integrate both sides with respect to $x$ :

$\displaystyle\int\frac{\mathrm d}{\mathrm dx}[x^5u]\,\mathrm dx=C$

$x^5u=C\implies u=Cx^{-5}$

Solve for $v$ :

$v'=Cx^{-5}\implies v=-\dfrac{C_1}4x^{-4}+C_2$

Solve for $y_2$ :

$\dfrac{y_2}{x^3}=-\dfrac{C_1}4x^{-4}+C_2\implies y_2=C_2x^3-\dfrac{C_1}{4x}$

So another linearly independent solution is $y_2=\dfrac1x$ .

3 0

3 years ago

Please help and graph it I need this done in 2 minut s pleasee

My name is Ann [436]

Go to a website called desmos it’s a graphing calculator and you just type what you want graphed and it shows it

3 0

3 years ago

What is 4+2 x { 16/ (5+3)} 2

Dahasolnce [82]

The answer for you problem is 6

4 0

3 years ago

Read 2 more answers