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GalinKa [24]
3 years ago
5

If p/q=q/r then prove that p3+q3+r3=(1/p3+1/q3+1/r3)p2q2r2​

Mathematics
1 answer:
luda_lava [24]3 years ago
6 0

Hope you could understand.

If you have any query, feel free to ask.

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Belle bought 18 seeds in order to plant an herb garden for her grandma. Of the seeds she bought, 10 were parsley seeds.
Harrizon [31]

Answer:

  0.3431

Step-by-step explanation:

Here, it can work well to consider the seeds from the group of 18 that are NOT selected to be part of the group of 15 that are planted.

There are 18C3 = 816 ways to choose 3 seeds from 18 NOT to plant.

We are interested in the number of ways exactly one of the 10 parsley seeds can be chosen NOT to plant. For each of the 10C1 = 10 ways we can ignore exactly 1 parsley seed, there are also 8C2 = 28 ways to ignore two non-parsley seeds from the 8 that are non-parsley seeds.

That is, there are 10×28 = 280 ways to choose to ignore 1 parsley seed and 2 non-parsley seeds.

So, the probability of interest is 280/816 ≈ 0.3431.

___

The notation nCk is used to represent the expression n!/(k!(n-k)!), the number of ways k objects can be chosen from a group of n. It can be pronounced "n choose k".

6 0
3 years ago
What is the greatest common factor of 64 and 72
erastova [34]
8 is the gcf of 64 and 72

3 0
3 years ago
Read 2 more answers
Which rotation has occured if A (-4,2) moves to A (-2,-4)​
Alja [10]

Answer:

90 degrees counter-clockwise

Step-by-step explanation:

7 0
3 years ago
Which measure of center best represents each set of data?
brilliants [131]
Median= 3
Range= 5
Mode= 3
Mean= 4
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3 years ago
If f(x) = ||x|| , find f (-1/4)
spin [16.1K]
Anything that is absolute value is just that same number

therefore the answer is 1/4

hope this helps
8 0
3 years ago
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