Answer:
Beginner. Use a paper strip coated in a pH indicating dye. Dip the strip into the water and wait for the strip to change color. ...
Intermediate. Use a pH testing kit for liquids. ...
Advanced. A digital pH meter can be used to obtain the most accurate reading of the pH level.
Step-by-step explanation:
Answer:
Your answer is 114.33
Step-by-step explanation:
How I got the answer was
156.43
- 42.1
————-
114.33
It is easy subtraction don’t let decimals fool you!
For a easier way take out the dot in the decimal and put it in after when you got the answer!
Have a nice day! And thank you for this question! :)
Brainlest is always appreciated! :)
The answer will be start fraction pi over 2 end fraction
Answer:
1.4% is the maximum acceptable annual rate of growth such that the population must stay below 24 billion during the next 100 years.
Step-by-step explanation:
We are given the following in the question:
The exponential growth model is given by:

where k is the growth rate, t is time in years and
is constant.
The world population is 5.9 billion in 2006.
Thus, t = 0 for 2006

We have to find the maximum acceptable annual rate of growth such that the population must stay below 24 billion during the next 100 years.
Putting these values in the growth model, we have,

1.4% is the maximum acceptable annual rate of growth such that the population must stay below 24 billion during the next 100 years.
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