Answer:

Step-by-step explanation:
From the given information;
the probability of getting returned p = 0.1
If eight rings are sold today, what is the probability that fewer than three will be returned;
According to binomial distribution
Binomial distribution is the probability of success or failure of an outcome of an experiment under observation which is usually repeated several trials. Binomial experiments are random experiment with fixed number of repeated experiment. If we cannot predict before head, the outcome of an experiment , the experiment is called a random experiment.
So , using binomial distribution to determine the probability that fewer than three will be returned;
i.e


Step-by-step explanation:
The answer is A. The answer is A because the teacher put names in a hat without looking. That narrows down the answer to A and B. Since he didn't do it in a special scientific way the answer is A
Answer:
Use this to solve 3
Step-by-step explanation:
Area = 1/2 b.c sin A
=1/2(13.1)(8.7)sin29. 17
Answer:
Step-by-step explanation:
Since 1cm=10mm
(big to small multiply, small to big divide)
3579/10=357.9
so 1.1 cm or 11 mm
<span>smallest side = x
</span><span>hypotenuse = 4x
</span><span>By the Pythagorean theorem:
</span><span>
(4x)</span>² - x² = (√735)²
16x² - x² = 735
15x² = 735
x² = 735/15
x² = 49
x = √49
x = 7 ← smallest side
hypotenuse = 4x = 4*7 = 28