A proton represents a positive charge. Write an integer to represent 5 protons. An electron represents a negative charge. Write
1 answer:
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Let x be the amount of neutral solution we need to add.
Since we have 40 fl of 5% local anesthesia solution, we have
fl of pure anesthesia.
After adding neutral solution, our new volume will be
. Remember that the concentration of the anesthesia after adding neutral solution should be 5%=0.05, and since the volume of the pure anesthesia won't change, we can relate all the values with the equation:
We can conclude that we will need to add 10 fl of neutral solution to our 40 fl of 5% anesthesia solution to get 50 fl of 4% anesthesia solution.
Since we have 40 fl of 5% local anesthesia solution, we have
After adding neutral solution, our new volume will be
We can conclude that we will need to add 10 fl of neutral solution to our 40 fl of 5% anesthesia solution to get 50 fl of 4% anesthesia solution.
Answer:
Step-by-step explanation:
In order to write the series using the summation notation, first we need to find the nth term of the sequence formed. The sequence generated by the series is an arithmetic sequence as shown;
4, 8, 12, 16, 20...80
The nth term of an arithmetic sequence is expressed as Tn = a +(n-1)d
a is the first term = 4
d is the common difference = 21-8 = 8-4 = 4
n is the number of terms
On substituting, Tn = 4+(n-1)4
Tn = 4+4n-4
Tn = 4n
The nth term of the series is 4n.
Since the last term is 80, L = 4n
80 = 4n
n = 80/4
n = 20
This shows that the total number of terms in the sequence is 20
According to the series given 4 + 8 + 12 + 16 + 20+ . . . + 80 , we are to take the sum of the first 20terms of the sequence. Using summation notation;
4 + 8 + 12 + 16 + 20+ . . . + 80 =
An obtuse triangle is formed if there is an angle that has a measure of more than 90 degrees. You can determine if an obtuse angle is formed by two sides of a triangle if it meet this condition:
Let a and b be two sides of a triangle and c is the longest side:
So taking your given:
< 
100 + 225 <
325 <
To get the smallest possible number, just get the square root of both sides:
< 
18.03 < c
So your smallest possible whole number is 19
Let a and b be two sides of a triangle and c is the longest side:
So taking your given:
100 + 225 <
325 <
To get the smallest possible number, just get the square root of both sides:
18.03 < c
So your smallest possible whole number is 19