Answer:
a(n) = 10n-1 (the second one)
Step-by-step explanation:
we use formula
a(n) = a +(n-1)d (a= the first number in the, n=the times we need, d= difference)
a=9
d=9-19=10
a(n) = 9 +(n-1)10
a(n) = 9 +10n-10
I hope it will help
The question is vary small.
I can't see it.
768 m²
8 x 400 = 3200 cm = 32 m
6 x 400 = 2400 cm = 24m
32 x 24 = 768 m²
I believe its hyperbola
s (t (-7))=?
Step-by-step explana
s (t (-7))= -7s t
