123 is 75% of what amount
2 answers:
You might be interested in
Solution
Question 1:
- The formula for finding the mean score is that of the expected value formula. That is,
- Thus, the mean can be gotten as follows:
The mean score is 7.43
Question 2:
- The more students write the exam, the more the mean score will approach the theoretical mean score.
- The theoretical mean score is calculated above to be 7.43
- Thus, as more students write the quiz, their scores approach 7.43
Answer:
=(1) 2x*2x*2x = 8x^3
(2) -3y^2* -3y^2* -3y^2 =
(3) 2x * -3y^2 * 2x = -12 x^2 y^2
(4)-3y^2*-3y^2*2x = 18xy^4
(5) -3y^2*-3y^2*2x = 18xy^4
(6) 3y^2*-3y^2*2x = 18xy^4
(7) 2x * -3y^2 * 2x = -12 x^2 y^2
(8)2x * -3y^2 * 2x = -12 x^2 y^2
final answer: