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Gekata [30.6K]
3 years ago
6

(1 point) Write the given second order equation as its equivalent system of first order equations. u′′+6.5u′−1.5u=8sin(3t),u(1)=

−3,u′(1)=−1.5 Use v to represent the "velocity function", i.e. v=u′(t). Use u and v for the two functions, rather than u(t) and v(t). (The latter confuses webwork. Functions like sin(t) are OK.)
Mathematics
1 answer:
Over [174]3 years ago
6 0

Answer:

v' + 6.5\cdot v = 1.5\cdot u + 8\cdot \sin 3t

Step-by-step explanation:

The differential equation is:

v' + 6.5 \cdot v -1.5\cdot u = 8 \cdot \sin 3t

v' + 6.5\cdot v = 1.5\cdot u + 8\cdot \sin 3t

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Dracula has 48 pieces of candy. He gave ⅓ of his candy to his friend and 25% of his candy to his cousin. How many pieces of cand
Natali5045456 [20]

Answer:

Dracula will be left with 24 candies

Step-by-step explanation:

The given problem is of fractions and percentages.

Given that

Total pieces of candy = 48

Now as it is mentioned that Dracula gives 1/3 of his candies to his friend, wee have to find the one third of the total pieces of candies first.

one-third\ of\ candies = \frac{1}{3} * 48\\= 16

Dracula will be left with:

Candies\ left = Total\ candies - one\ third\ of\ candies\\= 48-16 = 32

Dracula will be left with 32 candies after giving one third to his friend.

Now he gives 25% of remaining to his cousin

So,

25\%\ of\ 32\\= \frac{25}{100}*32\\=8

Dracula will be left with: 32-8 = 24 candies

Hence,

Dracula will be left with 24 candies

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3 years ago
A band leader randomly selects 2 students out of 80 band members. If you and your brother are both band members. What is the pro
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The probability of choosing one of us is      2 / 80 .

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5/100

Step-by-step explanation:

5 over 100 is 5%, while the other options are 50%

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What is 2 2/3 in simplist form
ioda

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2 2/3 is Simplest form

Step-by-step explanation:

6 0
3 years ago
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(a)Find the greatest common factor (GCF) of 72 and 40.<br> (b)Use the GCF to factor 72 - 40.
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Answer:

(72-40) = 8 x (9-5)

Step-by-step explanation:

GCF = 8

(72-40) = 8 x (9-5)

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3 years ago
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