Answer:
A. There is no solution
Step-by-step explanation:
(12x - 6) = 4x - 9
Evaluate.
4x - 2 = 4x - 9
Deduct 4x from both sides of the equation.
-2 = -9
Multiply both sides by (-1).
2 ≠ 9
Since 2 does not equal to 9, this equation does not make sense and thus does not have a solution.
Question:
If a sample of 2 hammer is selected
(a) find the probability that all in the sample are defective.
(b) find the probability that none in the sample are defective.
Answer:
a
b
Step-by-step explanation:
Given
--- hammers
--- selection
This will be treated as selection without replacement. So, 1 will be subtracted from subsequent probabilities
Solving (a): Probability that both selection are defective.
For two selections, the probability that all are defective is:
Solving (b): Probability that none are defective.
The probability that a selection is not defective is:
For two selections, the probability that all are not defective is:
