Question

Look for a pattern and complete the conjecture.

Answer 1

Answer:

390

Step-by-step explanation:

The formula of sum of arithmetic sequence is $\frac{n}{2} (a+Tn)$

The number of this series are 2, 4, 6, 8, 10, 12, .  .  .  .  , 60.

The first term ( a ) = 2

The 30th even number is 60

The Tn is the term of the sequence

So the equation is

30/2 x ( 2 + $T_{30}$)

$T_{30}$ = 60

30/2 x ( 2 + 60 )

30/2 x (62)

1860/2

390

Answer 2

390 is the answer to the problem