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asambeis [7]
2 years ago
6

HELPPP ASAP !!! it’s for a test

Mathematics
2 answers:
Artist 52 [7]2 years ago
6 0

Answer:

-4, 1, 2, 3

Step-by-step explanation:

Marina86 [1]2 years ago
4 0

Answer:

-4, 1, 2, 3

Step-by-step explanation:

I put them from least to greatest.

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Newton’s law of cooling states that dx/dt= −k(x − A) where x is the temperature, t is time, A is the ambient temperature, and k
Vadim26 [7]

Answer:

(a) The solution to the differential equation is x = A_0Coswt + Ce^(-kx)

(b) The initial condition t > 0 will not make much of a difference.

Step-by-step explanation:

Given the differential equation

dx/dt= −k(x − A); t > 0, A = A_0Coswt

(a) To solve the differential equation, first separate the variables.

dx/(x - A) = -kdt

Integrating both sides, we have

ln(x - A) = -kt + c

x - A = Ce^(-kt) (Where C = ce^(-kt))

x = A + Ce^(-kx)

Now, we put A = A_0Coswt

x = A_0Coswt + Ce^(-kx) (Where C is constant.)

And we have the solution.

(b) Since temperature t ≠ 0, the initial condition t > 0 will not make much of a difference because, Cos(wt) = Cos(-wt).

It is not any different from when t < 0.

7 0
2 years ago
The area of the continent of North America is about 9,540,000square miles. Write 9,540,000 in expanded form using exponents to s
Kobotan [32]
9,000,000+500,000+40,000
8 0
3 years ago
F(x) = -x² – 10x + 16<br> Find f(-7)
Gala2k [10]

Answer:

-5

Step-by-step explanation:

or, f(x) = -x^2+10x+16

or, f(7) = (-7)^2+10*-7+16 (-7*-7=49)

=49-70+16

=65-70

=-5

5 0
3 years ago
4 quarters are equal in value to 20 nickels.
Brums [2.3K]

Answer:

30

70

5 (5 nickels for every 1 quarter)

4 0
2 years ago
Question Help
drek231 [11]
He drove 140 miles you take 245 divide by 7 then times by 4
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2 years ago
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