2x+5+(6x+1)
you distribute an invisible one to get them out of the parentheses
2x+5+6x+1
You then add like terms
8x+6
1% would be £60
3% would be £180
0.5% would be £30
3.5% would be £210
103.5% would be £6210
We need the multi choices to answer that
Given :
The percent of concentration of a certain drug in the bloodstream x hours after the drug is administered is given by
.
To Find :
Find the time at which the concentration is a maximum. b. Find the maximum concentration.
Solution :
For maximum value of x, K'(x) = 0.

Since, time cannot be negative, so ignoring x = -3 .
Putting value of x = 3, we get, K(3) = 15/( 9 + 9) = 5/6
Therefore, maximum value drug in bloodstream is 5/6 at time x = 3 units.
Hence, this is the required solution.
Answer:
a. always positive
Step-by-step explanation:
Alex learning?