By 32,760 different ways can a researcher select 4 rats from 15 rats and assign each to a different test .
<u>Step-by-step explanation:</u>
We need to find How many different ways can a researcher select 4 rats from 15 rats and assign each to a different test.Let's find out:
We will use Permutation here : As we will chose 4 rats out of 15 rats , order will be considered which will make this as a permutation problem . Formula for permutation is given by :
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According to question , we have
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Therefore , By 32,760 different ways can a researcher select 4 rats from 15 rats and assign each to a different test .
Answer:
-14
Step-by-step explanation:
Answer:
Not affected
Step-by-step explanation:
Given: Shortly after Samantha sold her shares, the price per share increased by . Another investor in the corporation, Jeffrey, owned shares of Graham Corporation. A reverse stock split was announced.
To Find: how was Jeffrey financially affected by the split.
Solution:
Number of shares Jeffrey had
Let the stock value of share after Samantha sold her share
Total value of Jeffrey's shares
As a for stock split was announced
Each share is merged into shares and value of share is increased in respective ratio such that
Now,
Number of share Jeffrey had after split
Stock value of share after split
Total value of Jeffrey's shares
As the value of Jeffrey's stock before and after split is same therefore Jeffrey is not financially affected by the split.
Plug x = 9 into each equation and see if it fits.
we see that 2(9) - 3 = 15 so the fifth choice is the correct one
2x - 3 = 15