S the difference of 2 squares:-
a^2 - b^2 = (a + b)(a - b)
so her it is (2y + z)(2y - z)
Answer:
True
Step-by-step explanation:
Let B={} a set of vectors containing the zero vector.
B is linear dependent if exist scalars not all zero such that .
Observe that if and then
.
Then B is linear dependent.
let's recall that the incenter is where all angle bisectors for the triangle meet, and that an angle bisector cuts an angle into two equal halves.
Check the picture below.
It is ninety three million
Answer:
14.78% probability that a sample of 10 covers will contain exactly 2 defectives
Step-by-step explanation:
For each cover, there are only two possible outcomes. Either it is defective, or it not. The probability of a cover being defective is independent from other covers. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
If the fraction of defective covers produced on the USB Mouse Factory production line is known to be 8%, what is the probability that a sample of 10 covers will contain exactly 2 defectives?
This is when . So
14.78% probability that a sample of 10 covers will contain exactly 2 defectives