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timofeeve [1]
3 years ago
5

Solve the differential equation using the method of undetermined coefficients

Mathematics
1 answer:
yuradex [85]3 years ago
5 0
First: the homogeneous solutions: the characteristic equation is4r^2 - 4r - 3 = 0which has roots r = 3/2, -1/2 hence the homogeneous solution isy = c1.exp(-x/2) + c2.exp(3x/2)

next you need the general form for the guess for yp and that isyp = A1cos(2x) + A2sin(2x)
Now substitute that into the equation and solve for A1, A2.
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-3|r+4|=-21 need help for a friend
KonstantinChe [14]
Ans given below

-3r-12=-21
-3r=-21+12
-3r=-9
r=-9\-3
r=3
4 0
3 years ago
Plz help me plzzzzzzzzzzzzzzzzzz
12345 [234]

Answer:

3

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
Elvira is comparing prices between two different suppliers of fresh lettuce. Val’s Veggies charges $250 for delivery plus $1.50
ad-work [718]

Answer:

61 bags of lettuce

Step-by-step explanation:

Let's create two equations representing the cost of bags of lettuce:

Val's Veggies: 250 + 1.50x = V

Sally's Salads: 100 + 4.00x = S

If you buy 60 bags of lettuce from either store, the answers will be equivalent:

If x = 60

250 + 1.50x = V

250 + 90 = V

340 = V

100 + 4.00x = S

100 + 240 = S

340 = S

Now that both equations are equivalent, all we need to do to tip the balance and make Val's Veggies cheaper is purchase one more bag of lettuce:

x = 61

250 + 1.50x = V

250 + 91.50 = V

341.50 = V

100 + 4.00x = S

100 + 244 = S

344 = S

Since V represents the price of a bag of lettuce at Val's Veggies and V is now less than S (Sally's Salads), Val's Veggies is now the cheaper option.

Therefore, 61 bags of lettuce must be purchased in order for Val's Veggies to be the cheaper option.

7 0
4 years ago
1/4 kilometer = how many meters
Alchen [17]
The answer to your question is
1/4 kilometer = 0.25 kilometers = 250 meters

You answer is 250 meters
3 0
4 years ago
PLEASE HELP ME !!!!!!!!
OLga [1]

Answer:

2nd option is correct...................................

4 0
2 years ago
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