What are the solution(s) of the quadratic equation 98 – x2 = 0
2 answers:
To solve first move the 98 to the other side by subtracting it from both sides. Then divide by - 1 on both sides to that the x^2 is no longer a negative. You are left with:
Now square root both sides to get
The two factors that make up 98 are 49 and 2. 49 can be square rooted. So we are left with these answers:
and 
Now square root both sides to get
The two factors that make up 98 are 49 and 2. 49 can be square rooted. So we are left with these answers:
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Answer:
a) 16.82 mg
b) 24 days
Step-by-step explanation:
Formula for exponential growth is given as:
Where A is the final population
is the initial population
b is the growth factor
c is the time taken for the growth 'b'
t is the amount of time
Here, We are given the following:
= 5 mg
b = 2 (Given because it doubles)
c = 4 days
a) A = ?
Using the formula:
b) Given
A = 320 mg
t = ?
Using the above formula again:
So, the answers are:
a) 16.82 mg
b) 24 days