Answer:
a_n = 2.2 + 0.6 n
a_50 = 32.2
Step-by-step explanation:
What's the common difference of this series?


Common difference =
.
Expression for the nth term:

n = 50 for the fiftieth term. Therefore
.
Answer:
9 & 1/4
Step-by-step explanation:
you have 3/4 and you subtract by 10, and since 3/4 is a decimal (0.75) you subtract it by 10 wich gives you 9 & 1/4
Answer:
18
Step-by-step explanation:
Given
4(n - 4) + 14 ← substitute n = 5 into the expression
= 4(5 - 4) + 14
= 4(1) + 14
= 4 + 14
= 18
Answer:
x2−3x−2
Step-by-step explanation: