What is the first term of the arithmetic sequence with
a =5 and a =20
² ⁵
Choices
A.0 B.5 C.-5 D.-1
a =5 and a =20
² ⁵
Choices
A.0 B.5 C.-5 D.-1
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Answer:
A. 0
Step-by-step explanation:
get the common difference
d=20-5 over 5-2=15 over and then 15 divided by 3=5
find the first erm
20=a_1+(5-1)5
20=a_1+(4)5
20=a_1+(20)
20-20=a_1
0=a_1