Question

Need help with this ASAP

Answer 1

Answer:

7) is not an arithmetic sequence...

9) $0.5 \cdot 4^x$

10) $-0.25 \cdot (-8)^x$

Step-by-step explanation:

7 is not an arithmetic sequence because consecutive terms of the sequence do not have a constant common difference.

9 has a first term of 0.5 and has a common ratio of 4 (the quotient between the second term and first, then third term and second, etc.). Thus, your equation is  $0.5 \cdot 4^x$

10 has a first term of -0.25 and has a common ratio of -8 (the quotient between the second term and first, then third term and second, etc.). Thus, your equation is $-0.25 \cdot (-8)^x$