Answer:
Factoring
Completing the square
For this case seems more complicated the option completing the square because we need to do more operations and we need to know algebra. By the other hand for the Factoring case we just need to find two numbers that satisfy the conditions required.
Step-by-step explanation:
Assuming the following expression:
Factoring
For this case we want to find two values that added would be 4 and multiplied would be 3. On this case these two values are 3 and 1 because 3+1=4 and 3*1 =3. So then we can factor the expression like this:
Completing the square
For this case if we want to complete the square we need to do this:
And if we simplify this we got:
For this case seems more complicated the option completing the square because we need to do more operations and we need to know algebra. By the other hand for the Factoring case we just need to find two numbers that satisfy the conditions required.
Answer:
52
Step-by-step explanation:
-22-10(-7)
-22--70
-22+70
52
Answer:
16% probability that the facility needs to recalibrate their machines.
Step-by-step explanation:
We have to use the Empirical Rule to solve this problem.
Empirical Rule:
The Empirical Rule states that, for a normally distributed random variable:
68% of the measures are within 1 standard deviation of the mean.
95% of the measures are within 2 standard deviation of the mean.
99.7% of the measures are within 3 standard deviations of the mean.
What is the probability that the facility needs to recalibrate their machines?
They will have to recalibrate if the number of defects is more than one standard deviation above the mean.
We know that by the Empirical Rule, 68% of the measures are within 1 standard deviation of the mean. The other 100-68 = 32% is more than 1 standard deviation from the mean. Since the normal distribution is symmetric, of those 32%, 16% are more than one standard deviation below the mean, and 16% are more than one standard deviation above the mean.
So there is a 16% probability that the facility needs to recalibrate their machines.
Yes. I completely agree with that person ^^
