Answer:
a. 11
Step-by-step explanation:
Answer:
Step-by-step explanation:
You can solve this using algebra and cross multiplication.
($1.65/1 lb)=(x/3.2 lbs)
x(1 lb)=($1.65)*(3.2 lbs)
x (1 lb)=5.28
x=$5.28
They will cost $5.28.
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:
x=[15:-5:-25]'
Step-by-step explanation:
In order to create a vector you need to use this command:
x = [j:i:k]'
This creates a regularly-spaced vector x using i as the increment between elements. j is the initial value and k is the final value. Besides you need to add the character ' at the end in order to convert the arrow vector in a column vector
Answer:
D
Step-by-step explanation:
This is because they are both mulitplied by two so they are still equivalent