Write the explicit
rule for the nth term.
Then find a21
{4, 16, 64...}

The rule would be 4ⁿ

4²¹

Step-by-step explanation:

This is a geometric sequence, the terms are all powers of 4.

The rule here would be 4ⁿ

To find the 21st term, we simply substitute 21 for n in our rule. So:

= 4²¹

Leaving in index form is fine as the expanded number is very large

pls ask

c: y > - 1/6x + 1

step-by-step explanation:

dashed line - meaning this < or > also not equal

solid line - meaning this < or > also equal

your answer is c because y > means up & it's shaded up, but y < means down

hope this ! : )