Ok what is it that u need
Answer:
8 miles
Step-by-step explanation:
24/3 = 8
PH
is a scale which measures the acidity or alkalinity of a solution. It ranges
from a level of 1 to 14. A pH which range from 1 to 6 represents an acidic
substance. At pH of 7, signifies the solution is neutral. And at a pH of 8-14
represents a basic solution. pH is expressed as the negative logarithm of the
concentration of hydronium ions. To determine the factor of how the pH will change, we use the definition of the pH.<span>
pH = -log [H+]
5.50 = -log [H+]
[H+] = 10^-5
2.00 = -log [H+]
[H+] = 10^-2
</span>10^-5 / 10^-2 = 0.001
The rate of reaction would change by a factor of 0.001 as the pH change from 5.5 to 2.0
Answer:
1 the perimeter is 124 area is 300
2 perimeter is 117 area is 565.5
4 perimeter is 99 area is 337.5
5 perimeter is 130 area is 717.5
53 races are needed to finish.
<h3><u>Determination of quantities</u></h3>
Given that 271 sprinters enter a race, and the track has 7 lane so only 7 can compete at a time, and at the end 6 non winners are eliminated and the winners race in a later race, to determine how many races are needed to finish the following calculation must be performed:
- 271 / 7 = 38.71 (39)
- 39 / 7 = 5.57 (6)
- 45 / 7 = 6.42 (7)
- 7 / 7 = 1
- 39 + 6 + 7 + 1 = X
- 53 = X
Therefore, 53 races are needed to finish.
Learn more about quantities in brainly.com/question/26368368
