Answer:
7
Step-by-step explanation:
We can check if it works:
7+(-6) is the same as saying 7-6 which is equal to 1. Therefore, we are correct. Hope I could help!
Answer:
Identity Property (of 0)
Step-by-step explanation:
25^(n-3)=5^(n+8)
Remember: 25=5²
Therefore:
5^[(n-3)²]=5^(n+8)
5^(2n-6)=5^(n+8)
Then:
2n-6=n+8
2n-n=8+6
n=14
Answer: n=14
Answer:
15.4
Step-by-step explanation:
-5×(-4.9) +7×(-1.3)
=24.5+(-9.1)
=24.5-9.1
==15.4
