Answer:
= 5n - 2
Step-by-step explanation:
The nth term of an arithmetic sequence is
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Given a₄ = 18 , then
a₁ + 3d = 18 , that is
3 + 3d = 18 ( subtract 3 from both sides )
3d = 15 (divide both sides by 3 )
d = 5
Then
= 3 + 5(n - 1) = 3 + 5n - 5 = 5n - 2 ← explicit rule
Answer:
-2 + 5 = 3
Step-by-step explanation:
The arrow represents an addition, you start with -2 and add 5, so you end up at +3.
x/3+17is less than or equal to 15
x/3is less than or equal to 15-17
xis less than or equal to -6
Answer:
46/3
Step-by-step explanation:
|2a| - b/3
Plug in the values and evaluate.
|2(7)| - (-4)/3
|14| + 4/3
Apply | a | = a
14 + 4/3
42/3 + 4/3
= 46/3
