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3 years ago

8

Suppose that the number of bacteria in a certain population increases according to a continuous exponential growth model a sampl

e of 2700 bacteria selected from this population reach the size of 2976 bacteria in 2 hours find hourly growth rate parameter

1 answer:

STALIN [3.7K]3 years ago

8 0

5% per hour
I am still guessing
Needs to be verified
Hope it helps a little bit

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Figure 2<br> 4n<br> 5n -15<br> 90<br> 3n + 25<br> 6n - 10

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Step-by-step explanation:

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Five years ago, John’s age was half of the age he will be in 8 years. How old is he now?

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18

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3 years ago

| 7 + m | - 4 > 8

cestrela7 [59]

Answer:

m > 5 or m < -19

Step-by-step explanation:

We are given the Inequality:

$\displaystyle \large{ |7 + m| - 4 > 8}$

First, add both sides by 4.

$\displaystyle \large{ |7 + m| - 4 + 4 > 8 + 4} \\ \displaystyle \large{ |7 + m| > 12}$

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$\displaystyle \large{ |a| = \sqrt{ {a}^{2} } }$

Given a = any expressions and b = any positive numbers, zero or any expressions.

$\displaystyle \large{ |a| = b \longrightarrow a = \pm b}$

From the Inequality, change > to equal

$\displaystyle \large{ 7 + m = \pm12}$

Subtract 7 both sides.

$\displaystyle \large{ 7 - 7 + m = \pm12 - 7} \\ \displaystyle \large{ m = \pm12 - 7}$

±12-7 can be 12-7 = 5 or -12-7 = -19

$\displaystyle \large{ m = 5, - 19}$

Refer to the attachment. The region is when the absolute value function is greater than constant function y = 12 or a blue horizontal line.

Since the absolute graph is above constant graph when x > 5 and x <-19.

Therefore,

$\displaystyle \large{ m > 5, m < - 19}$

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3 years ago