Answer:
Here's what I got
Step-by-step explanation:
(6n^2 - 6n - 5)(7n^2 + 6n - 5)
42n^4 - 6n^3 - 101n^2 + 25
(n^2 + 6n - 4)(2n - 4)
2n^3 + 8n^2 - 32n + 16
Take the difference between Tiffany's score and the average:
53 - 67 = -14
Divide this difference by the standard deviation to get the <em>z</em>-score:
(53 - 67)/5.5 = -14/5.5 ≈ -2.55
Answer:
25
Step-by-step explanation:
you count by 5, 5 times
1. 5 +
2. 5 +
3. 5 +
4. 5 +
5. 5 +
= 25