Answer:
21 1/4
Step-by-step explanation:
Given:
To find:
The measure of angle A to the nearest degree.
Solution:
We have,
It can be written as
Therefore, the measure of angle A to the nearest degree is 70 degrees.
Answer:
15/4
Step-by-step explanation:
Answer:
1770
Step-by-step explanation:
No calculator is needed.
When you fill in the numbers, you get ...
1 = (x/1770)^(-0.8)
The only way the value will be 1 is if the fraction is 1:
x/1770 = 1
The only way the fraction will be 1 is x = 1770.
1770 mg Zn ions per liter will be lethal in 1 minute.
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<em>Check</em>
You know the answer will be slightly more than 1743 from your answer to the second part of the first question.