kaseymarieq6
kaseymarieq6
12-12-2019
Mathematics
contestada
d=5, a10=48. find a45
Respuesta :
anabiaahwad1485
anabiaahwad1485
16-12-2019
Answer:
223
Step-by-step explanation:
it is an arithmetic sequence and we will use this formula
an = a1+(n-1)d
now first we will find a1
a10= a1+(10-1)d
48= a1 +9×5
after simplify
a1=3
now using again this formula we can easily find a45
a45= 3+(45-1)4=223
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