What is a Punnett square and how is it used?

1 answer:

6 0

The Punnett Square is a diagram used to predict an outcome of what a specific cross or breeding experiment.
It is used by biologists to determine the probability of the offspring of having a genotype

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Help Ftmtrntnnrnrnrnrrrn

tangare [24]

39/89 because of sohcahtoa

7 0

3 years ago

What's the answer to: divide £48 in the ratio 7:5 (please show your working, much appreciated)

Brums [2.3K]

I can see you come from outside the USA. No insults intended!!
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Anyways, we have to put one side of the ratio and match it to 48.
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Or even better...
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MAKE!!
A!!
PROPORTION!!
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So... Let's say 7 is proportional to 48... so 7/5 = 48/x, where x is the number equivalent to ratio of 5.
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Cross multiply!!
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7x = 240.
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Divide 7 on both sides.
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x = 34 2/7.
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Hope I helped!!

4 0

3 years ago

At a race track you have the opportunity to buy a ticket that requires you to pick the first and second place horses in the firs

rewona [7]

Answer:

4032 different tickets are possible.

Step-by-step explanation:

Given : At a race track you have the opportunity to buy a ticket that requires you to pick the first and second place horses in the first two races. If the first race runs 9 horses and the second runs 8.

To find : How many different tickets are possible ?

Solution :

In the first race there are 9 ways to pick the winner for first and second place.

Number of ways for first place - $^9C_1=9$