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Butoxors [25]
2 years ago
12

I NEED HELP PLEASE !!

Mathematics
1 answer:
nasty-shy [4]2 years ago
6 0

A. Yes, it's true that the domain is {x | x is a real number}.

B. No, the range of f is (-∞, 0].

C. No, f is only decreasing over the interval (0, ∞).

D. Yes, The point (0,0) is a maximum.

E. No, since (0,0) is already a maximum and it's a zero so there is only one x-intercept.

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A scientist running an experiment starts with 100 bacteria cells. These bacteria double their population every 15 hours. Find ho
emmasim [6.3K]

Answer

It will take (t) = 24 hours to reach 300 .

Step by step explanation

It doubles every 15 hours.  initial bacteria = 100

We need to find how long it take for the bacteria cells to increase to 300.

300 = 100(2)^t/15

300/100 = 2^t/15

3 = 2^t/5

Taking "ln" both sides, we get

ln(3) = t/15 ln(2)

t/15 = ln(3)/ln(2)

t/15 = 1.585

t = 1.585 * 15

t = 23.78 hours

t = 24 hours to nearest whole hours.

Thank you.


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3 years ago
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Rectangle

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A rectangular prism and its dimensions are shown in the diagram.
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51.08 in.²

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