There was a total of 17.5 quarts of blood that was collected.
Hope this helps! :-)
(A)
Step-by-step explanation:
All other choices will result in a negative number inside the radical sign.
The following option best describes how the margin of error is calculated: D. It is equal to the inverse of the square root of the sample size.
The small amount that is granted for in case of miscalculation or change of circumstances.
All four sides of a square are equal.
So if BC is 10, then AC is also 10.
The 2 small black lines through the sides of the triangle indicate that the 2 sides are the same length.
Because the 2 sides are the same the 2 bottom angles are also the same.
This means that 9x +3 = 84
Now we can solve for x:
9x +3 = 84
Subtract 3 from each side:
9x = 91
Divide both sides by 9:
x = 81 / 9
x = 9
