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likoan [24]
3 years ago
8

POSTING THIS AGAIN PLEASE I NEED HELP I CAN'T FAIL THIS TEST

Mathematics
1 answer:
kotegsom [21]3 years ago
4 0

Answer:

729 : 9 = 80 +1 is correct

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Use the procedures developed to find the general solution of the differential equation. (Let x be the independent variable.)
makkiz [27]

Solution :

Given :

2y''' + 15y'' + 24y' + 11y= 0

Let x = independent variable

(a_0D^n + a_1D^{n-1}+a_2D^{n-2} + ....+ a_n) y) =  Q(x)  is a differential equation.

If Q(x) \neq 0

It is non homogeneous then,

The general solution  = complementary solution + particular integral

If Q(x) = 0

It is called the homogeneous then the general solution =  complementary solution.

2y''' + 15y'' + 24y' + 11y= 0

$(2D^3+15D^2+24D+11)y=0$

Auxiliary equation,

$2m^3+15m^2+24m +11 = 0$

-1  | 2    15    24     11

   <u> | 0   -2    - 13    -11  </u>

      2    13    11       0

∴ 2m^2+13m+11=0

The roots are

$=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$=\frac{-13\pm \sqrt{13^2-4(11)(2)}}{2(2)}$

$=\frac{-13\pm9}{4}$

$=-5.5, -1$

So, m_1, m_2, m_3 = -1, -1, -5.5

Then the general solution is :

$= (c_1+c_2 x)e^{-x} + c_3 \ e^{-5.5x}$

 

8 0
3 years ago
Solve the equation :<br>-3 • ( 2 - x ) + 4 = 2 • ( 1 - 2x) + 3<br>thanks :) ​
kakasveta [241]

Isolate the variable by dividing each side by factors that don't contain the variable.

x  =  1

-6+3x+4=2-4x+3

-8+7x+1=0

7x=7

x=1

4 0
3 years ago
Hiiiiiii help me thanks!
Arisa [49]
Would the answer be one isosceles triangle sorry if you get it wrong I’m kinda slow 10-9=1
6 0
3 years ago
Read 2 more answers
I need yo help B, on dis question
Anna71 [15]
For this case we can use the law of the sine to solve the problem.
 We have then:
 5 / sine (68) = 5 / sine (x)&#10;
 From here, we clear the value of x.
 We have then:
 sine (x) = (5/5) * (sine (68))&#10;
 Rewriting we have:
 sine (x) = (1) * (sine (68))&#10;&#10;sine (x) = sine (68)&#10;&#10;x = arcsine (sine (68))&#10;&#10;x = 68
 Answer:
 
The angle R is given by:
 
x = 68 degrees
 
option B
8 0
4 years ago
The discriminant of a quadratic equation has a value of 0. Which of the
NeTakaya

Answer:

A is correct

Step-by-step explanation:

5 0
4 years ago
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