Find the fourth term of an arithmetic sequence if the first term is 12 and the common difference is -3. A (subscript 4)=???

The fourth term of the sequence is 3

Step-by-step explanation:

For an nth term in an arithmetic sequence

A(n) = a + (n - 1)d

Where n is the number of terms

a is the first term

d is the common difference

From the question

a = 12

d = - 3

So the fourth term of the sequence is

A(4) = 12 + (4 - 1)-3

= 12 + (3)(-3)

= 12 - 9

The final answer is

3

Hope this helps you.

i dont know

step-by-step explanation:

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system