Answer:
170
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
The margin of error is of:
Assume:
90% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
What is the smallest sample size required to obtain the desired margin of error?
This is n for which M = 0.03. So
Rounding up, 170.
Answer:
(12x+ 5 ) (x+ 1)
Step-by-step explanation:
12x^2+17x+5
(12x+ ) (x+ )
We want 12 in the middle so
12+5 =17
5*1 =5
(12x+ 5 ) (x+ 1)
Take any of the valid pairs of points, use the formula
rate of change = (y2-y1)/(x2-x1)
Say we use P1=(0,21.4), P2=(3,19)
x1=0, y1=21.4
x2=3, y2=19
Rate of change = (21.4-19)/(0-3)=2.4/(-3) = -0.8 sq. ft/in of liquid
Answer:
Step-by-step explanation:
6=48
