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r-ruslan [8.4K]
3 years ago
13

Solve the equation 5х + 8 – 3x = -10 x=-9 x=-1 x=1 x= 9

Mathematics
2 answers:
noname [10]3 years ago
6 0

Answer: x = -9

Step-by-step explanation:

5x + 8 - 3x = -10

Combine like terms

2x + 8 = -10

Subtract 8 from each side

2x = -18

Divide each side by 2

x = -9

enyata [817]3 years ago
4 0
The answer is -9. Have a great day
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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
(2a+3b)^2 = 20 a.b=1 4a^2+9b^2=?<br><br>PLS FAST ANSWER
IceJOKER [234]

Answer:8

Step-by-step explan:

(a.b)^2 equals a^2 + 2ab + b^2

3 0
3 years ago
3. According the the chart below, what percentage of the Simpsons' annual expenses is taxes? If the Simpsons annual
serg [7]

Answer:

$7,600

Step-by-step explanation:

Simpson's annual income = $76,000.

Percentage tax = 10%

This means that 10% of Simpson's annual income was paid as tax.

Amount of tax paid in $ can be gotten as;

10% of $76,000

= 10/100×$76,000

= $7,600

This means Simpsons pay $7,600 in taxes.

7 0
4 years ago
Read 2 more answers
At the grocery store, Emily notices that it costs
Dmitriy789 [7]

Answer:

4.34

Step-by-step explanation:

2.48/40=0.062 per ounce

0.062 x 70 = 4.32 for 70 ounces

4 0
3 years ago
Help please!!! Don't come and steal my points please, I really need this answered.
neonofarm [45]
C because it says no more not equal too
6 0
3 years ago
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