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3 years ago

15. Round 4,057 to the nearest hundred

Mathematics

2 answers:

ddd [48]3 years ago

4 0

Answer:

4,100

Step-by-step explanation:

melisa1 [442]3 years ago

3 0

4,100

Have a great day.

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Answer:

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Step-by-step explanation:

FOIL

First, Outside, Inside, Last

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Inside: x*3=3x

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Which of the following figures has a length, width, and height?

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Answer:

I believe

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Is the answer I did it in 6th or 7th grade

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If a bacteria population starts with 100 bacteria and doubles every three hours, then the number of bacteria after t hours is n

natali 33 [55]

Answer:

$f^{-1}=3ln_2(\frac{t}{100})$

f^-1 represents the number of hours the bacteria developed

Step-by-step explanation:

$f(t) = 100 \cdot 2^\frac{t}{3}$

To find inverse of a function , replace f(t) with y

$y= 100 \cdot 2^\frac{t}{3}$

replace t with y and y with x

$x= 100 \cdot 2^\frac{y}{3}$

solve for y

divide both sides by 100

$\frac{x}{100} =2^\frac{y}{3}$

take ln on both sides

$ln \frac{x}{100} =\frac{y}{3}ln 2$

divide both sides by ln

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multiply by 3 on both sides

$y=3ln_2(\frac{x}{100})$

Replace x with t and y with f^-1

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