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:
Step-by-step explanation:
<u>Use the formula:</u>
- degrees/360° = L/circumference
- or
- radians/π = L/circumference
<u>As per given:</u>
l = 12 feet, r = 10 feet
- degrees = 360°*12/(2*3.14*10) = 68.78°
- radians = π rad *12/(2π*10) = 0.6 rad
Answer:
<h2><em><u>
x = -1</u></em></h2>
Step-by-step explanation:
<em><u>1. Distribute</u></em>
3x + 3 = -2x + 2 - 4
<em><u>2. Simplify</u></em>
-2x + 2 - 4
2-4 = -2
-2x - 2
<em><u>3. Solve</u></em>
3x + 3 = -2x - 2
+2x +2x
<em><u>4. Cont. Solving</u></em>
5x + 3 = -2
-3 -3
5x = -5
<em><u>5. Divide by 5</u></em>
5x = -5
/5 /5
<h2>
<em><u>x = -1</u></em></h2><h2>
<em><u /></em></h2>
Hope this helped,
Kavitha Banarjee