What is the unknown term.in the seqpence 4.5, 5.4,____7.2A.6.2 or B. 63
Mathematics · Middle School · Mon Jan 18 2021
llm
Answered on
We have,
4.5, 5.4,____7.2
Here,
a1 = 4.5
a2 = 5.4
d = 5.4 - 4.5
= 0.9
Formula :
an = a + (n-1)d
a3 = a + (3-1)d
a3 = a + 2d
a3 = 4.5 + 2(0.9)
= 4.5 + 1.8
= 6.3
Hence, option (B) is correct.