Question

Find the 78th term of the arithmetic sequence -4, -2, 0, ...

Answer 1

Answer:

150

Step-by-step explanation:

a= -4

n =78

d= -2-(-4)

= -2+4

= 2

an= a+( n-1)d

= -4+(78-1)2

= -4 +(77) × 2

= -4 +154

= 150