2 years ago

Select the situation that can be represented by 20x

Mathematics

1 answer:

ipn [44]2 years ago

3 0

You work x hours. you get 20 dollars per hour. this is a random situation, because u didn't give us choices.

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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

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

multiply by 3 on both sides

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

Replace x with t and y with f^-1

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

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

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2 years ago

Convert 11.42424242 … to a rational expression in the form of , where b ≠ 0.

statuscvo [17]

I think it is the second one but im not for sure

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2 years ago

Solve D 41=12d-7 zhcduhdudebiscbihbihb

Daniel [21]

Answer:

Step-by-step explanation:

12d - 7 = 41

12d = 48

d = 4

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2 years ago

Please answer this question!! 30 points and brainliest!

Alexeev081 [22]

2x(-5x-3)

2x(-5x)= -10x and 2x(-3)= -6x

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Answer:

hope it helps you plz mark me brilliantest

Step-by-step explanation:

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