An arithmetic sequence is - 1/2 , 1, 5/2 , 4, 11/2 , 7, . what is the general term of the sequence?

ADD 3/2

Step-by-step explanation:

-1/2 + 3/2 = 1

1+3/2= 1/1+3/2 = 2/2 + 3/2 =5/2

5/2 +3/2 = 8/2 = 4

4+3/2  = 8/2 +3/2 = 11/2

11/2 +3/2 =14/2 =7

b

step-by-step explanation:

18 units²

step-by-step explanation:

first let's find altitude bd using the distance formula

d = √((y₂ - y₁)² + (x₂ - x₁)²)

bd = √((0 - -3)² + (0 - 3)²)

bd = √18

given the placement of points a and c, we can denote that point d bisects segment ac.

we will call ac the base.

using the distance formula

ac = √((0 - 6)² + (-6 - 0)²)

ac = √72

knowing our base and our height, we can plug these into our triangle area formula

area = (b * h)/2

area = (√18 * √72) / 2

area = (√1296) / 2

area = 36 / 2

area = 18 units²