Answer: -1.33 .
Step-by-step explanation:
Formula to find the Z-score :

Given: Mean = 191 and Standard deviation = 21
Then , the z-score corresponding to the expected value of 163 will be :

Hence, the z score corresponding to selling 163 inhalers is -1.33 .
Answer:
x=+-
Step-by-step explanation:
=
+ 
=64+25
=89
x=+-
Answer:
D. The scuba diver was 35 meters below the surface of water at the start of the ascent.
Step-by-step explanation:
The y-intercept of the graph representing the scuba's driver ascent to the surface is -35.
This represents the starting level below the surface of the water.
✅-35, means that the driver was 35 meters below the surface of water at the start of the scuba's ascent to the surface.
Answer:
in the 8 is ADB, in the 7 I'm not sure about you need to do sorry, or maybe you need to classify what triangle it is think is a scalene triangle because has a different measurements
10^0=10 and the reason its ten is becuse 10 times nothing