A scientist begins an experiment with a petri dish containing a culture of bacteria cells and records the cell growth every hour. At 1 hour, the bacteria had grown to 880 cells, and at 2 hours, had grown to 3,520 cells. Which function can be used to represent the relationship between the number of bacteria cells, y, and the time in hours, x?

Answers

Answer 1
Answer:

Answer: Hello!

we know that in the first hour, we had 880 cells, and in the second hour we have 3520 cells. The first step is see how much the population changed in this one hour, this can be done by looking into the quotient:

3520/880 = 4

then the population of cells cuatriplied in one hour, and is safe to asume that every hour that pases, the population will catriplied  again.

so if the populationat hour 1 is: 880

at hour 2 is: 4*880

at hour 3 is = 4*4*880 and so on.

This can be described with an exponential function as follows

P(t) = 880*4^(x-1)

where 880 is the initial population, and x is represents the hours.

Answer 2
Answer: These are the choices y = 4 x y = 220(4) x y = 880(4) x y = 880(0.25) x Right..?

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Simplify the equation

( -3x )^0 / 2

if possible please explain

Answers

Hi


(-3x)^0/2

Simplify

= 1/2


I hope that's help !

Basically, remember that anything to the power of zero will equal one, so 1/2 is one half

((46-(4-2)×5))÷2-4=
I need to show my work. The answer has to be 22

Answers

((46-(4-2)* 5))÷2-4\n (46-(2)* 5)/ 2-4\n (46-10)/ 2-4\n 36/ 2-4\n 18-4\n =14
((46-(4-2)\cdot5))/2-4=\n(46-2\cdot5)/2-4=\n(46-10)/2-4=\n 36/2-4=\n 18-4=\n 14

You are told that P(A | B) = P(B | A). Which statement below must be true? A and B are equally likely
P(A | B) = 0.5
A and B are independent
A and B are dependent

Answers

The best answer to the question that is being stated above would be that A and B are both dependent. If I was told that P(A | B) = P (B | A), then the true statement is that both variables inside would be dependent upon each other, no matter if you exchange their places with one another.

Answer:

The answer is A and B are dependent

What is 807.3 divided by 9

Answers

Answer: 807.3/9= 89.7

Step-by-step explanation:

How would I do this problem. It says to solve and check 5/k? -6?= -3

Answers

You would first move the 6 onto the other side by adding it. Then you would end up doing -3+6 which is 3. Then your equation will look like: 5/k=3. You would then do opposite operation again to the 5 this time. You do the opposite of dividing, so multiplying. You multiply the 5 on both sides which you would end up doing 5 x 3 which is 15. Your equation will then be looking like k=15. To check if you did it right, just simply plug in the 15 as k. So the equation to check should look like this: 5/15-6=3. Solve it, and you should end up as the answer being equal to 3.

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Answers

Answer:

50

Step-by-step explanation:

  • blue=5
  • r⁴=40
  • B=5
  • totally of 50milimeters

Answer: 50 millimeters