Answer:
1. (-10,-5)
2.(1/2,-1) 3. All real numbers infinite solution 4.(3 9)
Step-by-step explanation:
Answer:
Step 1: Calculate the mean (the average weight).
Step 2: Subtract the mean and square the result.
Step 3: Work out the average of those differences.
Step-by-step explanation:
504 because when you multiply 9 by 8 and then by 7 (9x8x7) you get 504.
