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Jet001 [13]
3 years ago
7

Find an exponential model : Q is the population of bacteria in a Petri dish whose population was originally 150,000 but is tripl

ing every 6 hours.
Mathematics
1 answer:
Nadya [2.5K]3 years ago
4 0

Answer:

150,000*3^t for 6 hour increments (t=1 is 6 hours t=2 is 12)

150,000*3^(t/6) for hourly increments, each t is 1 hour.  

Step-by-step explanation:

Well super simply you could do 150,000*3^t where t is measured in 6 hour intervals.  so t=1 is 6 hours, and to get 1 hour you would need to do t=1/6

If you want t to be an increase of every hour you would just need to adjust, like I showed before 1/6 gets one hour so 150,000*3^(t/6) would be the model where every t increases by 1 hour.

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If sin theta is negative and cot theta is positive, in which quadrant does theta terminate?
krok68 [10]

All you need to know is that:

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So, if sin theta is negative and cot theta is positive, you're saying that you're looking at a point with negative y coordinate and such that

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Saying that an angle has negative sine and cosine is the same as saying that the angle identifies a point on the unit circle where both x and y coordinates are negative.

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