Answer:
1.c
2.b
3. c
4.d
Step-by-step explanation:
leave an brainlest!
Answer: 2.14 %
Step-by-step explanation:
Given : pH measurements of a chemical solutions have
Mean :
Standard deviation :
Let X be the pH reading of a randomly selected customer chemical solution.
We assume pH measurements of this solution have a nearly symmetric/bell-curve distribution (i.e. normal distribution).
The z-score for the normal distribution is given by :-
For x = 6.74
For x = 6.76
The p-value =
In percent,
Hence, the percent of pH measurements reading below 6.74 OR above 6.76 = 2.14%
Answer:
The height of the larger pyramid is 5/m
The volume is proportional to the cube of the height
Step-by-step explanation <em>Thus 3^3: 27h^3 : 125 h = 5m</em>
<em>MARK BRAINLIEST >33 ~BRIANA</em>