Answer: half life = 1.98 seconds
Step-by-step explanation:
Given that the amount of sodium-24 in the patient’s body in milligrams after t hours is given by
S(t) = 5e–0.35t.
From the equation above, decay constant K = 0.35
Half life = ln2/K
Half life = ln2/ 0.35
Half life = 1.98 seconds
if you mean 12÷12 the answer is 1
if you mean 1/2÷1/2 the answer id 0.25 or 1/4
if you mean 1(2) ÷ 1(2) the answer is also 1
if you mean 1+2÷1+2 the answer is 1
Answer: 10 customers.
Step-by-step explanation:
The formula to find the required sample size :
(1)
, where p= prior population proportion.
n= sample size.
= Population standard deviation from previous studies.
Let p be prior population proportion of the customers who click on ads on their smartphones .
As per given , we have
p=0.62
E= 0.27
For 92% confidence , significance level : 
The critical value of z for 92% confidence interval from z-table would be

Put theses values in the formula (1), we will get


Therefore , the company should survey 10 customers .
Since they are congruent rectangles, they have the same side lengths.
The area of a rectangle is width times height
11(18)=198 square inches.
Answer:
101 is greater than 101 and 0 is less than 1