Answer:
2 < 3 ⇒ -2 > -3
Step-by-step explanation:
∵ 2 < 3
If we divide each side by -1
∴ -2 < -3 but it's not true
∴ we must reverse the sign of inequality
∴ -2 > -3
similar:
∵ 25 > 20
If we divide each side by -5
∴ -5 > -4 it's not true
∴ we must reverse the sign of inequality
∴ -5 < -4
Answer:
I forgot the answer from the last 4 versions of this question!!!!
Step-by-step explanation:
Answer:
3.6% of the ball bearings will have diameters of 20.27 mm or more.
Step-by-step explanation:
We can calculate this proportion using the z-score.
We have a normal distribution with mean 20.00 mm and standard deviation of 0.150 mm.
The value for X is 20.27 mm.
Then, the z-score and its associated probability are:

240
/ \
5 48
/ \
6 8
/ \ / \
3 2 4 2