Answer:
22.50
- 15.00
_______
7.50
Step-by-step explanation:
She still owes $7.50
Using the binomial probability relation ; the probability that an head is obtained at least 50 times is 0.0271
<u>Using the binomial probability relation</u> :
- P(x = x) = nCx * p^x * q^(n-x)
- p = probability of success = 0.4
- q = 1 - p = 0.6
- n = number of trials = 100
P(x ≥ 50) = p(x = 50) + p(x = 51) + ...+ p(x = 100)
<u>Using a binomial probability calculator</u> :
P(x ≥ 100) = 0.0271
Therefore, the probability that atleast 50 heads are obtained in the trial is 0.0271
Learn more :brainly.com/question/12474772
The answer is;
The graph has a dotted line and is shaded below.
Factor out 4x first
4x(6x² + x - 1)
factor the rest as normal, knowing that what adds to give the middle term multiplies to give the last term.
4x(2x + 1)(3x - 1)
Each home room had 279 cans
5,022 divided by 18 = 279
279 times 18 = 5,022 . answer: 279 cans per homeroom