The formula for a sequence with first term = 1.7 and common difference 0.5 is: 
Step-by-step explanation:
The first term and common difference are used to induce a formula for the arithmetic sequence
The explicit formula for a geometric sequence is:

Given
First term = a1 = 1.7
Common Difference = d = 0.5
putting the values in the formula

The formula for a sequence with first term = 1.7 and common difference 0.5 is: 
Keywords: Arithmetic sequence, Common difference
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I know u gonna use calculator girl.
Step-by-step explanation:
=2* ( l+b )
=2* ( 11.37+9.245 )
=2* 20.595
=41.19
Answer:
The answer is 9/10
Step-by-step explanation:
it's 9/10