I pretty sure this one is b
5,12,13
5X5=25
12X12=144
25+144=169
answer: square root 169=13
27 x 34 = 918
Correct division Equations are:
918 ÷ 34 = 27
and
918 ÷ 27 = 34
PS. PLZZZZZZZZZZZ give me brainliest!!!
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%