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
alex41 [277]
3 years ago
13

Find a solution to y″+9y=6sin(3t).

Mathematics
1 answer:
QveST [7]3 years ago
3 0
 <span>y" + 9y = 0 
m^2 + 9 = 0 
m = ± 3i 

yH = C1 cos 3t + C2 sin 3t 

yP = C3 t sin 3t + C4 t cos 3t
hope this helps </span>
You might be interested in
Find the height of a with a cone with a diameter of 22 m whose volume is 113 m3.
Alexxandr [17]

Answer:

h=0.89

Step-by-step explanation:

Given

Diameter=22m

so radius=11m

Volume=113m^3

Solution

1/3πr^2h=113

1/3×3.14×11×11h=113

h=113×3/3.14×11×11

h=0.89

So the value of h is 0.89

7 0
3 years ago
Read 2 more answers
Jack drank 1 1/3 cups of milk for breakfast, 1 5/6 cups of milk for lunch, and 1 3/4 cups for dinner. How much milk did Jack dri
natima [27]

Answer:

4.91666666667

Step-by-step explanation:

1 1/3 + 1 5/6 + 1 3/4 = 4.91666666667

3 0
3 years ago
The length of the hypotenuse of a right triangle is 24. If the length of one leg is 8, what is approximate length of the other l
Verdich [7]

Something that a right triangle is characterised by is the fact that we may use Pythagoras' theorem to find the length of any one of its sides, given that we know the length of the other two sides. Here, we know the length of the hypotenuse and one other side, therefor we can easily use the theorem to solve for the remaining side.

Now, Pythagoras' Theorem is defined as follows:

c^2 = a^2 + b^2, where c is the length of the hypotenuse and a and b are the lengths of the other two sides.

Given that we know that c = 24 and a = 8, we can find b by substituting c and a into the formula we defined above:

c^2 = a^2 + b^2

24^2 = 8^2 + b^2 (Substitute c = 24 and a = 8)

b^2 = 24^2 - 8^2 (Subtract 8^2 from both sides)

b = √(24^2 - 8^2) (Take the square root of both sides)

b = √512 (Evaluate 24^2 - 8^2)

b = 16√2 (Simplify √512)

= 22.627 (to three decimal places)

I wasn't sure about whether by 'approximate length' you meant for the length to be rounded to a certain number of decimal places or whether you were meant to do more of an estimate based on your knowledge of surds and powers. If you need any more clarification however don't hesitate to comment below.

4 0
3 years ago
What is the solution of −21 = n − 8?
PilotLPTM [1.2K]

Answer:

N=-13

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
Will give brainliest, please help fast​
Gekata [30.6K]

Answer:

Converting the equation x^2-20x+13=0 into completing the square method we get: \mathbf{(x-10)^2=87}

Step-by-step explanation:

we are given quadratic equation: x^2-20x+13=0

And we need to convert it into completing the square method.

Completing the square method is of form: a^2-2ab+b^2=(a-b)^2

Looking at the given equation x^2-20x+13=0

We have a = x

then we have middle term 20x that can be written in form of 2ab So, we have a=x and b=? Multiplying 10 with 2 we get 20 so, we can say that b = 20

So, 20x in form of 2ab can be written as:  2(x)(10)

So, we need to add and subtract (10)^2 on both sides

x^2-20x+13=0\\x^2-2(x)(10)+(10)^2-(10)^2+13=0\\(x^2-2(x)(10)+(10)^2) \:can\: be\: written\: as\: (x-10)^2 \\(x-10)^2-100+13=0\\(x-10)^2-87=0\\(x-10)^2=87

So, converting the equation x^2-20x+13=0 into completing the square method we get: \mathbf{(x-10)^2=87}

4 0
3 years ago
Other questions:
  • Write the following comparison as a ratio reduced to lowest terms.<br><br> 34 quarters to 10 dollars
    15·1 answer
  • Write an equation of the line that is parallel to the given line y = 2x + 3 and the given point (-4,1).
    13·1 answer
  • What is 2 2/3 × 1 2/3
    10·1 answer
  • Two similar figures have a side ratio of 4:3. If the perimeter of the smaller figure is 15 units, what is the perimeter of the l
    5·2 answers
  • Jeff is baking a cake. The recipe says that he has to mix 32 grams of vanilla powder to the flour.
    9·2 answers
  • Mr. Renzo owns a company that makes specialized big screen TVs. From 2000 through 2015, the number of TVs produced can be modele
    11·1 answer
  • HELP ME OUT PLEASE I WILL GIVE BRAINLIEST
    5·1 answer
  • Easy question answer plssss
    5·2 answers
  • Which number has the greatest value
    8·1 answer
  • Stacia randomly chooses a number from 1 to 10. What is the probability she
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!