Answer:
-3
Step-by-step explanation:
I think that's it. I'm not sure.
Given the formula:

First term:

Second term:

Third term:

Fourth term:

Answer: the first four terms are: 4, 9, 16 and 25
Answer:
<h2>

</h2>
Step-by-step explanation:

To find f(19) , substitute the value of x that's 19 into f(x). That is for every x in f (x) replace it with 19
We have

We have the final answer as

Hope this helps you
Answer:
A 6000
Step-by-step explanation:
15x20 = 300
300 x 10
since theres two rectangles with the same side lengths
3000 x 2
6000
Answer:
0.143
Step-by-step explanation:
From counting principle, we can say that:
There are 7! ways of the 7 people to arrive first. Any one of them can come first. But, what is the probability that Xerxes with arrive first?
We take that Xerxes is the first one to arrive, then from the 7 - 1 = 6 remaining people, they can arrive in 6! ways. So
Probability Xerxes arrives first = 6!/7! = 0.1429
Rounding to 3 decimal places, it will be:
<u>Probability Xerxes arrives first = 0.143</u>