The interval given was 33% to 37%
This means that subtracting the margin of error from the percentage of the population that visit the library once a year gives the lower end and adding the margin of error to the percentage of the population that visit the library once a year gives the upper end
Let x denote margin of error and y denotes the percentages of the population that visit the library once a year
we can get the following equations and solve for the values of x and y
Adding eqn1 and eqn2 to gives
Putting the value of y into any of the equations
Thus, the margin of error is
Therefore we enter 2 in the box
a square mile is equivalent to 27878400 square feet
Answer:
3.2 or 3.2/320
Step-by-step explanation:
Answer:
Step-by-step explanation:
Th formula of a Surface Area of a cylinder:
We have r =4cm and H = 12.4cm. Substitute:
Answer:
sorry idk
Step-by-step explanation: