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Mathematics

1 answer:

DochEvi [55]3 years ago

8 0

$f(x)=8x^2-4x\\\\\text{substitute}\ x=\dfrac{m}{4}\\\\f\left(\dfrac{m}{4}\right)=8\cdot\left(\dfrac{m}{4}\right)^2-4\cdot\dfrac{m}{4}=8\cdot\dfrac{m^2}{16}-m=\dfrac{m^2}{2}-m$

$\text{Answer:}\ D.\ \dfrac{m^2}{2}-m$

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Question

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Question:

In a neighbourhood pet show, each of the animals entered is equally likely to win. if there are 7 dogs, 6 cats, 3 birds, and 2 gerbils entered, what is the probability that a bird will win the top prize?

Answer:

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Step-by-step explanation:

Given:

The number of dogs = 7

The number of cats = 6

The number of birds = 3

The number of gerbils = 2

To Find:

Probability that a bird will win the top prize = ?

Solution:

Let us first find the total number of pets .