Answer:
=14n⁴+8n²-9n+7
Step-by-step explanation:
(8n⁴-6n+8n²)+(6n⁴-3n+7)
=8n⁴-6n+8n²+6n⁴-3n+7
=8n⁴+6n⁴+8n²-6n-3n+7
=14n⁴+8n²-9n+7
Answer: 
Step-by-step explanation:
In the geometric sequence we can see each time we are dividing by 5. That is the same as multiplying by
so that is the common ratio.
Answer:
Mean: 9
Median: 9
Mode: 9
Variance: 9
Standard deviation: 9
Step-by-step explanation:
Answer:
4.5 Kilograms is the answer :)
Step-by-step explanation: