Answered

what is the 20th number in sequence 76,72,68,64?

Sagot :

Jugwaviz
A∨n=A∨1+(n-1)d
where d is the common difference;
A∨n is the nth term;
A∨1 is the first term

A∨20=76+(20-1)-4
=76+(19)-4
=76-76
=0
so 0(zero) is the 20th term