Answer: a - 4.512 hours
b - 1.94 hours
Step-by-step explanation:
Given,
a) A(t) = 10 (0.7)^t
To determine when 2mg is left in the body
We would have,
A(t) = 2, therefore
2 = 10(0.7)^t
0.7^t =2÷10
0.7^t = 0.2
Take the log of both sides,
Log (0.7)^t = log 0.2
t log 0.7 = log 0.2
t = log 0.2/ 0.7
t = 4.512 hours
Thus it will take 4.512 hours for 2mg to be left in the body.
b) Half life
Let A(t) = 1/2 A(0)
Thus,
1/2 A(0) = A(0)0.7^t
Divide both sides by A(0)
1/2 = 0.7^t
0.7^t = 0.5
Take log of both sides
Log 0.7^t = log 0.5
t log 0.7 = log 0.5
t = log 0.5/log 0.7
t = 1.94 hours
Therefore, the half life of the drug is 1.94 hours
Step 1: Assess the key characteristics. Examine the peaks and spread of the distribution. ...
Step 2: Look for indicators of nonnormal or unusual data. Skewed data and multi-modal data indicate that data may be nonnormal. ...
Answer:
The digit 5 is equal to is 5,000 :)
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Answer:
Option (1)
Step-by-step explanation:
Length of a rectangle = (5.9d + 8.3f) cm
Width of the rectangle = (7.3d + 2.2f) cm
Since formula to get he perimeter of a rectangle is,
Perimeter = 2(length + width)
= 2[(7.3d + 2.2f) + (5.9d + 8.3f)]
= 2(13.2d + 10.5f)
= (26.4d + 21f) cm
Therefore, Option (1) will be the correct option.
