Answer:
The probability that all will last at least 30,000 miles is 0.3164.
Step-by-step explanation:
Consider the provided information.
For a particular tire brand, the probability of wearing out before 30,000 miles is 0.25. Someone who buys a set of four of these tires,
That means the probability of not wearing out is 1-0.25 = 0.75
Now use the binomial distribution formula.

Substitute p = 0.25, q=0.75, r=4 and n=4



The probability that all will last at least 30,000 miles is 0.3164.
Letter c because if u multiply 5•3 you get 15
Poor <span>Khianna. Let's help her out.
For the original recipe she needs </span>

cups of brown sugar but only has

So the fraction of the brown sugar she has is

She has to scale everything by a factor of

I won't multiply everything by 3/4 for you. 2 cups butter becomes 1 and a half cups butter, 1 tsp vanilla becomes 3/4 tsp, etc.
The answer is 0.6144÷1.6 =0.384
hope i help solving your question.
The point (8,-1) would lie in the quadrant IV or 4.
Hope This Helps!