Determine the number of terms n in each arithmetic series.
12) a1 = 13, d = 3, Sn = 1225

The number of terms n in arithmetic series is n=25

Step-by-step explanation:

We are given:

a₁ = 13

d = 3

Sₙ = 1225

We need to find number of terms i.e n

The formula used will be:

Putting values and finding n

Now, solving using quadratic formula to find value of n:

Putting values: a=3, b=23 and c=-2450

So, we get:

Since number of terms can't be negative so, n= 25

So, the number of terms n in arithmetic series is n=25

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints

a is the right answer