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How does vaccination make a person immune to a disease?

An inactive or weak form of the pathogen is introduced to the patient. This stimulates the production of lymphocytes which then produce antibodies against the antigen. Memory cells are also generated. If ...

YA
2788 Views

A student runs an experiment to decompose hydrogen peroxide to produce oxygen and water. Increasing the temperature of hydrogen peroxide increases the rate of reaction. Explain why.

When the hydrogen peroxide is heated, the particles have more energy so move faster. This means that they will collide more often, increasing the likelihood of successful collisions. More successful colli...

YA
8997 Views

Write about how far Shelley presents the monster as evil in the novel as a whole in Frankenstein? (AQA 2017)

Firstly, you'll want to pick out the key words of the question and define these; here the presentation of "evil" in the monster is what the question is wanting you to focus on. Also, Importa...

PD
Answered by Pansy D. English tutor
3242 Views

Find the inverse function of f(x)=5/(x-4)

f(x) = 5/(x-4)To find the inverse, replace f(x) with y: y=5/(x-4)Now the aim is to make x the subject of the equation:Multiply both sides by x-4:y(x-4)=5Divide by y:x-4=5/yAnd finally add 4:x=5/y + 4

KM
Answered by Katy M. Maths tutor
5897 Views

Solve 5x - 2 > 3x + 11

Collect x terms together by moving them over the greater than sign to have 5x - 2 - 3x > 11 (moving terms is the same as with an equals sign, if it is positive on one side it will be negative on the ot...

Answered by Maths tutor
3902 Views

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