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3 years ago

What is a life half I’m so lost

Biology

2 answers:

DiKsa [7]3 years ago

6 0

Answer:

the answer would be the 3rd answer

Explanation:

a half life is the time it takes for half of a radioactive substance to decay

I hope this helps :)

alina1380 [7]3 years ago

5 0

It is the third answer

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Write out the form of the partial fraction decomposition of the function (See Example). Do not determine the numerical values of

maw [93]

Answer:

a. $\frac{A}{x}+\frac{B}{x^2}+\frac{C}{x^3}+\frac{Dx+E}{x^2+5}$

b. $\frac{A}{x+3}+\frac{B}{x-3}+\frac{C}{(x-3)^2}+\frac{D}{(x+3)^2}$

Explanation:

a.We are given that

$\frac{x^4+7}{x^5+5x^3}$

$\frac{x^4+7}{x^5+5x^3}=\frac{x^4+7}{x^3(x^2+5)}$

Using partial fraction decomposition of the given function

$\frac{x^4+7}{x^3(x^2+5)}=\frac{A}{x}+\frac{B}{x^2}+\frac{C}{x^3}+\frac{Dx+E}{x^2+5}$

Using the formula

$\frac{1}{x^3(x^2+a)}=\frac{A}{x}+\frac{B}{x^2}+\frac{C}{x^3}+\frac{Dx+E}{x^2+a}$

b. $\frac{2}{(x^2-9)^2}$

$\frac{2}{(x^2-3^2)^2}=\frac{2}{(x+3)^2(x-3)^2}$

Using property $a^2-b^2=(a+b)(a-b)$

$\frac{2}{(x+3)^2(x-3)^2}=\frac{A}{x+3}+\frac{B}{x-3}+\frac{C}{(x-3)^2}+\frac{D}{(x+3)^2}$

Using the property

$\frac{1}{x^2}=\frac{A}{x}+\frac{B}{x^2}$

5 0

3 years ago

When an organism of many cells breaks up into two or more parts and these parts survive to produce a new organism, reproduction

denpristay [2]

The answer is called fragmentation, hope I helped (:

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3 years ago

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A new species of plant is discovered that closely resembles a known species. Upon further examination, it is discovered that the

ExtremeBDS [4]

Answer:

Explanation:

An error in cell division occurred in the known species, leading to the development of an autopolyploid tetraploid offspring that evolved into the new species.

7 0

3 years ago

URGENT BRAINLIST

Veseljchak [2.6K]

Part A

Plasmids are extracted from the bacteria

The plasmids are spliced at specific regions using restriction enzymes.

The cut plasmids are incubated with the novel gene and DNA ligase

Plasmids that will have incorporated the new gene are transformed back into the bacteria

Part B

The answer is transgenic organisms.

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3 years ago

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explain why cells don't just continue to grow larger as organisms grow larger. why do cells divide? please help and write in com

Soloha48 [4]

Because cell is composed of organelle and several little material which haven't an ability to increase in size just in same manner as a rubber therefore cell divide for increase their number .
i hope this is helpful

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3 years ago