Answer:
-y-x+5=0
Step-by-step explanation:
because if a line is perpendicular then
eqn bx-ay+.k..=0
Answer:
12 pints
Step-by-step explanation:
The arrow would be pointing to the 6
1. Sulfúrico
2. Flúor (hídrico) o (ico)
3. Pos o post (hídrico)
4. yodico o yoridico
5. Permaganico
6. biom (ico)
7. Nitrico
8. Fosforoso
9. Per-color (ico)
10. Flour (ico)
11. Niobico
12. Potasico
13. Titánico
14. Platoso
15. Vanad(ico)
The sequence multiplies by 1/3.
Using the formula for a geometric sequence:
a(n) = a(1) * r^(n-1)
So...
a(n) = 648 * (1/3)^(n-1)
Plugging in 8 for n produces:
a(n) = 648 * (1/3)^(7)
Using a calculator, I find the answer to be 0.296296296...
