All categories

3 years ago

Can someone help on this please

Mathematics

2 answers:

Darya [45]3 years ago

5 0

For the first one it’s n = 6 and for the second one it’s n = 7.

hope it helped.

Keith_Richards [23]3 years ago

4 0

Answer:

NO GACHA PLAYER

Step-by-step explanation:

BREEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

You might be interested in

Please help ASAP! Due in a hour! :) answer both and I will thank and mark as brainliest

lorasvet [3.4K]

Answer:

22: 45 and 126

Step-by-step explanation:

6 0

3 years ago

Find a particular solution to the nonhomogeneous differential equation y??+4y?+5y=?10x+e^(?x).

Firdavs [7]

Answer:

A) Particular solution:

$2x+\frac{1}{2}e^{-x}-\frac{8}{5}$

B) Homogeneous solution:

$y_{h}=e^{-2x}(c_{1}cos(x)+c_{2}sin(x))$

C) The most general solution is

$y=e^{-2x}(c_{1}cos(x)+c_{2}sin(x))+2x+\frac{1}{2}e^{-x}-\frac{8}{5}$

Step-by-step explanation:

Given non homogeneous ODE is

$y''+4y'+5y=10x+e^{-x}---(1)$

To find homogeneous solution:

$D^{2}+4D+5=0\\D^{2}+4D+4-4+5=0\\\\(D+2)^{2}=-1\\D+2=\pm iD=-2 \pm i\\y_{h}=e^{-2x}(c_{1}cos(x)+c_{2}sin(x))---(2)$

To find particular solution:

$y_{p}=Ax+B+Ce^{-x}\\\\y'_{p}=A-Ce^{-x}\\y''_{p}=Ce^{-x}\\$

Substituting $y_{p},y'_{p},y''_{p}$ in (1)

$y''_{p}+4y'_{p}+5y_{p}=10x+e^{-x}\\Ce^{-x}+4(A-Ce^{-x})+5(Ax+B+Ce^{-x})=10x+e^{-x}\\$

Equating the coefficients

$5Ax+2Ce^{-x}+4A+5B=10x+e^{-x}\\5A=10\\A=2\\4A+5B=0\\B=-\frac{4A}{5}B=-\frac{8}{5}2C=1\\C=\frac{1}{2}\\So,\\y_{p}=2x+\frac{1}{2}e^{-x}-\frac{8}{5}---(3)\\$

The general solution is

$y=y_{h}+y_{p}$

from (2) ad (3)

$y=e^{-2x}(c_{1}cos(x)+c_{2}sin(x))+2x+\frac{1}{2}e^{-x}-\frac{8}{5}$

6 0

3 years ago

In the figure below determine the midpoints

Digiron [165]

Midpoints are points in the middle, so I believe they are Midpoints: D, F and E

3 0

3 years ago

The variable u had a proportional relationship with x as suggested by the graph. use the graph to write an equation that models

Papessa [141]

Answer:

y = 14

Step-by-step explanation:

5 0

3 years ago

Negative number on a number line 3

MrMuchimi

-2.1 because each dash represents 0.1

8 0

2 years ago

Read 2 more answers