1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
malfutka [58]
3 years ago
14

Can somebody help me? and explain how to do this?

Mathematics
1 answer:
disa [49]3 years ago
8 0

Answer:

The correct answer is last option

2n + m√n - nm

Step-by-step explanation:

It is given an expression,

4√n² + √m²n -  √4n² - √mn²

<u>To simplify the expression</u>

4√n² + √m²n -  √4n² - √mn² = 4n + m√n -2n -nm

= 4n - 2n + m√n - n√m

= 2n +  m√n - n√m

Therefore the correct answer is last option

You might be interested in
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
Question 2 of 5
Mice21 [21]

Answer:

30

Step-by-step explanation:

4 0
3 years ago
Select all number combinations that COULD make a triangle
tester [92]

Answer:

2 cm, 9 cm, 10 cm

Step-by-step explanation:

To know if a combination is a triangle all you have to do is see if the combinations add up to 180

(2)(9)(10)=180 therefore it is a triangle.

All the other angles do not add up to 180 so they can't be triangles!!

(4)(10)(3) =120

(5)(6)(11) =330

(4)(5)(7) =140

4 0
3 years ago
5√28+ √63<br> please simplify no exponents please
zaharov [31]

Answer:

34.3948

Step-by-step explanation:

5\sqrt{28} +\sqrt{63} = 13\sqrt{7} = 34.3948

3 0
3 years ago
Read 2 more answers
The library surveyed 240 people about their favorite movie. If 15% people chose documentaries, how many people chose documentari
prohojiy [21]
36 people chose documentaries 
5 0
3 years ago
Read 2 more answers
Other questions:
  • I need help on fractions
    10·1 answer
  • Find the perimeter of the figure
    6·1 answer
  • A 15 feet tree casts a shadow that is 8 feet long. What is the distance from the tip of the tree to the tip of it's shadow?
    12·2 answers
  • N is an integer -1 &lt; n &lt; 4 list the possible values of n
    14·1 answer
  • Convert 8 1/4% to a decimal
    10·2 answers
  • How many meters are there in 89 inches
    13·2 answers
  • What is the equation for this problem and the answer? Please help!!!
    5·1 answer
  • Which postulate proves these two
    9·1 answer
  • 1. Michael serves 1.5 quarts of juice for eight people if he’s going to serve 128 people how much juice does he need?
    12·1 answer
  • The height of the rectangle and the triangle are the same. The base of the triangle is half the base of the rectangle.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!