Consider the following events:
• Let "O" represent the event "a randomly selected candy has chocolate on the outside"
• Let "Not O'or "OC" represent the event "a randomly selected candy has does not have
chocolate on the outside"
• Let"I" represent the event "a randomly selected candy has coconut on the inside"
• Let "Not l'or "1" represent the event "a randomly selected candy has does not have
coconut on the inside"
• Let "O or I" (described as O union I) be represented by OUI
• Let "O AND I" (described as O intersect I) be represented by Oni
Using the Two-way Table from the Khan Academy video, practice interpreting it by
writing out the meaning in words and as a reduced fraction. Several are already
completed for you.
Coconut inside
No Coconut inside
Total
-
6
9
Has Chocolate on Outside
No Chocolate on Outside
Total
2
8

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.  

step-by-step explanation: so we look at the formula un = a + (n-1)d

un is the amount of seats

n is the nth term aka row number

a is the original sequence/row number

d is the difference between each term

so in this a=22 d=6 and n can remain as n because we are simply formjng a rule

lets put these in the equation

un=22+(n-1)(6)

this is your answer to part a

however

lets double check that this is correct, we'll try putting it into the second term

un=a+(n-1)d

u2=22+(2-1)(6)

u2=22+6

u2=28

as the question said the second row has 28 seats so now we know the formula we made is correct.

as for part b

un=a+(n-1)

its asking us to find a row with 100 seats.

remember un was the amount of seata so all we do is substitute this in.

un=100 a=22 d=6

un=a+(n-1)d

100=22+(n-1)(6)

so now we simplify to find n which is the row number.

100-22=22+(n-1)(6)-22

78=(n-1)(6)

78/6=(n-1)(6)/6

13=n-1

13+1=n-1+1

14=n

so now we know that in the 14th row there is 100 seats.

hope this and that you understood! its my first time using the app or anyone out on here : p its also me to revise so a bunch! ask more questions if you dont understand ☺