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tensa zangetsu [6.8K]
3 years ago
13

I NEED HELP ASAP!!PLEASE HELP ME WITH MY MATH!

Mathematics
1 answer:
gtnhenbr [62]3 years ago
6 0

Answer:

A. -2, 9

B. -2, 4

C. -8, 4

D. -8, 9

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Original:4<br> New:5<br> State whether the percent of change is an increase or decrease
borishaifa [10]

Answer:

increase

Step-by-step explanation:

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If the acceleration of an object is given by dv/dt = −2v, Find the position function s(t) if v(0) = 7 and s(0) = 0.
kirill [66]

Answer:

Step-by-step explanation:

Given that acceleration of an object is

\frac{dv}{dt} =-2v\\\frac{dv}{v} =-2dt\\ln v = -2t+C\\

is the solution to the differential equation

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we get ln 7 = C

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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)[

substitute t=0 and s=0

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So solution for distance is

s(t) =\frac{-7}{2} (e^{-2t}-1)

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3 years ago
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6 0
2 years ago
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