Answer:
Neither.
Step-by-step explanation:
13 - 1 = 12 and 19 - 13 = 6 - no common difference so its not Arithmetic.
13/1 = 13 and 19/13 = 1.46 - no common ratio so its not Geometric.
Answer:
17
Step-by-step explanation:
Given
Finding the second term of the sequence means to find 
To find 
substitute 
into the second expression:
Answer:
2t+2u+2v+4w
Step-by-step explanation:
Add up all of the terms
Coefficients are added together because they are like terms, this can be proven with the distributive property. For example, x(2x+x)=2x^2+x^2=3x^2.
The commutative property of addition and the associative property demonstrate this.
The word "commutative" comes from "commute" or "move around", so the Commutative Property<span> is the one that refers to moving values around.
</span>
The associative property<span> states that you can add or multiply regardless of how the numbers are grouped. </span>
Answer:
1. x= -3
2. x= 20
Step-by-step explanation:
sorry if this is wrong,
