6 positive integer divisors are perfect cubes. I figured out what could possibly go into 23, 328 then did all the perfect cubes til those numbers appeared. A positive integer divisor is any number that isn't negative or non rational that goes into a selected number.
-2(-x + 3y) - 3(x - 5y)
-2(-x) - 2(3y) - 3(x) + 3(5y)
2x - 6y - 3x + 15y
2x - 3x - 6y + 15y
-x + 9y
TO solve this question on "how large of a sample must Beth have to get a margin of error less than 0.04", we will use the margin of error formula:
Here, for a 80% confidence level,
(given)
Thus, margin of error, E=0.04
rearranging we get:
Plugging in gives us:
Thus, Beth's sample for the true proportion of high school students in the area who attend their home basketball games must have 256 students.
Answer:
888888
Step-by-step explanation: