Answer:
n = 110
Step-by-step explanation:
Margin of Error :
Zcritical * s/ sqrt(n)
s = standard deviation = 4
Margin of Error = ±0.75
Zcritical at 95% level of confidence = 1.96
Margin of Error = Zcritical * s/ sqrt(n)
0.75 = 1.96 * 4 / sqrt(n)
0.75 = 7.84 / sqrt(n)
Take the square of both sides
0.5625 = 61.4656 / n
0.5625 * n = 61.4656
0.5625 = 61.4656
n = 61.4656 / 0.5625
n = 109.27217
About 110 samples
Hey there!
First solving the equation 2^3 . . .
To solve 2^3, multiply the number 2 three times:
2 x 2 x 2 = 8
To find area, multiply the two sides . . .
(Since a square has all sides the same length, multiply 8 x 8)
8 x 8 = 64 <-------
The area of the shape is 64 inches.
Hope this helps you.
Have a great day!
Answer:
x= -2
Step-by-step explanation:
Answer:
(0,1) (-1,1)
Step-by-step explanation:
Yes I do believe that is correct!
