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2 years ago

9

Help me calculate the perimeter of this shape!

2 answers:

lesya692 [45]2 years ago

5 0

Answer:

<h2>32 mm</h2>

Step-by-step explanation:

<h3>P = a + b + c + d</h3>

a = base

b = base

c = side

d = side

<h3>P = 8 + 12 + 6 + 6 </h3><h3> = 32 mm</h3>

pishuonlain [190]2 years ago

3 0

Answer:

32mm

Step-by-step explanation:

6 + 8 + 6 + 12 = 32mm

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mark bought 8 boxes .A week later half of all his boxes were destroyed in a fire there are now only 20 boxes left. With how many

strojnjashka [21]

Answer:

32 boxes

Step-by-step explanation:

20 · 2 = 40 - 8 = 32

4 0

2 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

3+p/2=6 How do I solve this?

Diano4ka-milaya [45]

$\boxed{\underline{\bf \: ANSWER}}$

$\sf\frac { 3 + p } { 2 } = 6 \\$

Multiply both sides by 2.

$\sf \: 3+p=6\times 2$

Multiply 6 and 2 to get 12.

$\sf \: 3+p=12$

Subtract 3 from both sides.

$\sf \: p=12-3$

Subtract 3 from 12 to get 9.

$\boxed{\bf \: p=9}$

____

Hope it helps.

RainbowSalt2222

5 0

3 years ago

Multiply 8-2x/5* 45x^3+90^2/10x^2-20x-80

lys-0071 [83]

Answer:

excuse me can you speak english

7 0

2 years ago

22 6/11 times 1 1/2 = ?? <br> Please help me!

Step2247 [10]

9/11 is the answer because 1 and 1/2 x 6 is 9

3 0

3 years ago

Read 2 more answers