Answer:
Step-by-step explanation:
Given that acceleration of an object is

is the solution to the differential equation
Since v(0) =7
we get ln 7 = C
Hence 
since velocity is rate of change of distance s we have
![v=\frac{ds}{dt} =7e^{-2t}\\s= [tex]s(t) =\frac{-7}{2} (e^{-2t})+C)[](https://tex.z-dn.net/?f=v%3D%5Cfrac%7Bds%7D%7Bdt%7D%20%3D7e%5E%7B-2t%7D%5C%5Cs%3D%20%5Btex%5Ds%28t%29%20%3D%5Cfrac%7B-7%7D%7B2%7D%20%28e%5E%7B-2t%7D%29%2BC%29%5B)
substitute t=0 and s=0

So solution for distance is

Answer:
a*sqrt(x+b) + c = d
or
a*√(x+b) + c = d
Step-by-step explanation:
He saved 7(3), which is equal to 21 dollars saved. Hope it helps!
Answer:
1
Step-by-step explanation:
Follow PBEMDAS:
Parenthesis
Brackets
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
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First, divide -64 with 8:
-64/8 = -8
Next, divide -8 with -8:
-8/-8 = 1
1 is your answer.
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