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2 years ago

What term is used to describe the graphical representation of the change in microbial population over time?

Mathematics

1 answer:

ruslelena [56]2 years ago

7 0

Answer:

The term exponential is often used.

Step-by-step explanation:

The term exponential is used to represent changes in population over time. The idea of (positive) exponential is that the higher the number, the higher the growth. You can relate this with a population, because the higher the population, the more opportunities for it to multiply, thus, the higher it grows.

Usually the way to meassure the population of an species after certain number of years x, you use an exponential function of the form

$f(x) = K_0 * a^x$

For certain constants K₀ and a. K₀ is the initial population at the start of the experiment and <em>a </em>number of exponential growth. Essentially, the population of the species is multiplied by a during each year.

For example, if K₀ = 1000 and a = 2, then the population at the start of the experiment is 1000. After the first year is 1000*2 = 2000 and after the second year it is 2000*2 = 4000. Note that, not only the population grow during the years, but also the amount that the population increases also grow: in the first year it grows 1000, and between the first and second year it grows 2000.

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Help with these algebra 2 questions

monitta

$Given\;:\sqrt{-18} - \sqrt{-32}$

we know that i² = -1

$\implies\sqrt{18}i - \sqrt{32}i\\$

$\implies 3\sqrt{2}i - 4\sqrt{2}i$

$\implies -i\sqrt{2}$

6 0

2 years ago

Read 2 more answers

Solve this system using matrices:

sweet [91]

Answer:

Step-by-step explanation:

A system of linear equations is one which may be written in the form

a11x1 + a12x2 + · · · + a1nxn = b1 (1)

a21x1 + a22x2 + · · · + a2nxn = b2 (2)

am1x1 + am2x2 + · · · + amnxn = bm (m)

Here, all of the coefficients aij and all of the right hand sides bi are assumed to be known constants. All of the

’s are assumed to be unknowns, that we are to solve for. Note that every left hand side is a sum of terms of

the form constant × x

Solving Linear Systems of Equations

We now introduce, by way of several examples, the systematic procedure for solving systems of linear

equations.

Here is a system of three equations in three unknowns.

x1+ x2 + x3 = 4 (1)

x1+ 2x2 + 3x3 = 9 (2)

2x1+ 3x2 + x3 = 7 (3)

We can reduce the system down to two equations in two unknowns by using the first equation to solve for x1

in terms of x2 and x3

x1 = 4 − x2 − x3 (1’)

and substituting this solution into the remaining two equations

(2) (4 − x2 − x3) + 2x2+3x3 = 9 =⇒ x2+2x3 = 5

(3) 2(4 − x2 − x3) + 3x2+ x3 = 7 =⇒ x2− x3 = −1

8 0

3 years ago

Read 2 more answers

Jessica is selling tickets for her softball team for $10 a ticket. Laurie is selling tickets for her softball team for $6 a tick

Mkey [24]

Answer:

90 tickets

Step-by-step explanation:

let the number of tickets be x

and the total amount each has be y

For Jessica

the amount is

y=10x--------1

for Laurie the amount is

Note: she has $360 already

y=360+6x-------2

to find the number of the tickets that will make them have the same amount, let us equate 1 and 2

10x=360+6x

10x-6x=360

4x=360

x=360/4

x=90

3 0

2 years ago

Plz help due tommorow big grade

Korvikt [17]

It would take 4750 because 1L is 5000 ml and 5000-250=4750. Use the web to do it in metric measurements.

3 0

2 years ago

What's the product of 42⁄3 and 111⁄4 ?

svet-max [94.6K]

Answer:

(D) $52\frac{1}{2}$

Step-by-step explanation:

The given fractions are:

$4\frac{2}{3}and 11\frac{1}{4}$ .

We have to find the product of the given fractions, that is:

= $4\frac{2}{3}{\times}11\frac{1}{4}$

Simplifying the mixed fractions, we get

= $\frac{14}{3}{\times}\frac{45}{4}$

= $\frac{105}{2}$

Converting the answer into mixed fraction, we get

= $52\frac{1}{2}$

which is the required answer.

7 0

2 years ago