Answer:

Step-by-step explanation:
The probability of getting one tails is a half.
The probability of getting another tails given you had a tails is:

The probability of getting n tails in general is given by:

So, when we have four tails - our value for n is four.

19 + 5a⁴ - 3b²
19 + 5(2)⁴ - 3(-4)²
19 + 5(16) - 3(16)
19 + 80 - 48
99 - 48
51
The school spent 100 dollars in all wow that's a lot tell me if you got the right answer when you turn ur test in
Answer:
15
Step-by-step explanation:
Answer: Irrational Hope this helps, please consider making me Brainliest.
Step-by-step explanation:
That number is irrational because it cannot be directly expressed with two integers. Hope this helps, please consider making me Brainliest.