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IceJOKER [234]
3 years ago
10

Hey can you help me fast!!

Mathematics
1 answer:
Reika [66]3 years ago
5 0
<h3>The answer is</h3><h2>12</h2>

(PS. I used to HATE i-ready)

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Research scientists need a certain type of bacteria to conduct an experiment. There are 2,500 bacteria in a certain culture. The
pychu [463]

Answer:

  7 days

Step-by-step explanation:

At 25% per day, it will take approximately 3 days to double the population, so approximately 6 days for the population to quadruple. Checking that number, we find it is not quite enough for the experiment, so another day is required.

"Guess and check" as a method of solution works especially well if you have an automated checker to evaluate your guess. A graphing calculator or spreadsheet can work well for this.

_____

We guess 3 days as the doubling time using the "rule of 72" that says the product of percentage and doubling time is about 72. That is, 72/25 ≈ 3. (This is only a very rough approximation of doubling time, best for rates near 8%.)

7 0
3 years ago
Help me i will give you a hundreds points
Vedmedyk [2.9K]

Answer:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.

4 0
2 years ago
Read 2 more answers
Write the equation for a parabola with a focus at (-8, -1) and a directrix at y = − 4.
Sidana [21]

Answer:

y = 1/6 x^2 + 8/3 x + 49/6

Step-by-step explanation:

This is a parabola which opens upwards.

The distance of a point (x, y)  from the focus is

√[(x -  -8)^2  + (y - -1)^2] and

the distance of the point from the line y = -4

= y - -4

These distances are equal for a parabola so:

√[(x -  -8)^2  + (y - -1)^2] = y + 4

Squaring both sides:

(x + 8)^2 + (y + 1)^2  = (y + 4)^2

x^2 + 16x + 64 + y^2 + 2y + 1 = y^2 + 8y + 16

x^2 + 16x + 64 + 1 - 16 = 8y - 2y

6y = x^2 + 16x + 49

y = 1/6 x^2 + 8/3 x + 49/6 is the equation of the parabola.

4 0
3 years ago
What is 5136 divided by 8
frutty [35]
5136/8 is equal to 642.

You can use a calculator if you'd like.
4 0
3 years ago
Read 2 more answers
HELP!! HELP!! geometry
Colt1911 [192]

Answer:

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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