The sum of n terms of a geometric sequence with first term "a" and common ratio "r" is given by

You have a=21, r=3, so the sum of 10 terms is

The appropriate choice is the 2nd one:
620,004
Answer:
y = 3x + 3
Step-by-step explanation:
when you check, only that equation delivers the correct x and y pairs.
x = 0, => y = 3×0 + 3 = 3
x = 1, y = 3×1 + 3 = 3+3 = 6
x = 2, y = 3×2 + 3 = 6 + 3 = 9
x = 3, y = 3×3 + 3 = 9 + 3 = 12
it all fits.
In standard form...
-7x^2 - 7x + 3
This is a trinomial because it has 3 terms.
The degree of this polynomial is 2.
Answer:
Maybe B?
Step-by-step explanation: