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mel-nik [20]
3 years ago
5

Jada bikes 2 miles in 12 minutes. Jada's cousin swims 1 mile in 24 minutes.

Mathematics
2 answers:
Katena32 [7]3 years ago
8 0

Answer:c

Step-by-step explanation:

Lemur [1.5K]3 years ago
6 0

Answer:

It's C

Step-by-step explanation:

Jada 2 miles in 12 minutes

12/2= 6 min per mile

Her cousin 1 mile in 24 minutes

24 min per mile

24-6= 18

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4 years ago
Determine the longest interval in which the given initial value problem is certain to have a unique twice-differentiable solutio
AnnZ [28]

Answer:

y'' + \frac{7}{t} y = 1

For this case we can use the theorem of Existence and uniqueness that says:

Let p(t) , q(t) and g(t) be continuous on [a,b] then the differential equation given by:

y''+ p(t) y' +q(t) y = g(t) , y(t_o) =y_o, y'(t_o) = y'_o

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If we apply this to our equation we have that p(t) =0 and q(t) = \frac{7}{t} and g(t) =1

We see that q(t) is not defined at t =0, so the largest interval containing 1 on which p,q and g are defined and continuous is given by (0, \infty)

And by the theorem explained before we ensure the existence and uniqueness on this interval of a solution (unique) who satisfy the conditions required.

Step-by-step explanation:

For this case we have the following differential equation given:

t y'' + 7y = t

With the conditions y(1)= 1 and y'(1) = 7

The frist step on this case is divide both sides of the differential equation by t and we got:

y'' + \frac{7}{t} y = 1

For this case we can use the theorem of Existence and uniqueness that says:

Let p(t) , q(t) and g(t) be continuous on [a,b] then the differential equation given by:

y''+ p(t) y' +q(t) y = g(t) , y(t_o) =y_o, y'(t_o) = y'_o

has unique solution defined for all t in [a,b]

If we apply this to our equation we have that p(t) =0 and q(t) = \frac{7}{t} and g(t) =1

We see that q(t) is not defined at t =0, so the largest interval containing 1 on which p,q and g are defined and continuous is given by (0, \infty)

And by the theorem explained before we ensure the existence and uniqueness on this interval of a solution (unique) who satisfy the conditions required.

7 0
4 years ago
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Answer:

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Example

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hope this helps!

4 0
2 years ago
A random sample of 110 children who play instruments were asked if they prefer milk or juice. The results are shown in the table
g100num [7]

Answer:

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I know I am a bit late, but here is the answer. I know this is the answer because I took the test. I am 100% sure that this is the answer for anyone who wants it. I'm very sorry that I was late for the answer.

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vodomira [7]

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