Question

find the first four terms and stated term an=25.5-6.8n,a10arthmetic with a as the first term​

Answer 1

Step-by-step explanation:

since a=10;an=25.5;n=-6.8;d=?

formula:a+(n-1)d=an

10+(-6.8-1)d=25.5

(-7.8)d=25.5-10

d=-1.9

therefore 1st 4 terms=

a=10

a1=8.1

a2=6.2

a3=4.3

a4=2.4