Answer:
Step-by-step explanation:
The first thing that I noticed was that all of the terms had a common factor of . You can therefore factor that out first:
Now, you have a quadratic equation inside the parentheses. Factoring, you find that the roots are -0.2 and 3, meaning that you can further factor this expression to be:
Hope this helps!
Answer:
No
Step-by-step explanation:
=2•2•2=8
=3•3=9
8≠9
Answer:
Step-by-step explanation:
Answer:
49,12, 39
Step-by-step explanation:
49+12+39=100
Answer:
A. 2.8 billion years old
Step-by-step explanation:
1/16 = (1/2)^4, so 4 half-lives have elapsed.
4 · 0.700 billion years = 2.8 billion years
The rock is 2.8 billion years old.