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Rashid [163]
3 years ago
15

Use the explicit formula an = a1 + (n - 1) • d to find the 350th term of the sequence below. 57, 66, 75, 84, 93, ... A. 3234 B.

3207 C. 3141 D. 3198
Mathematics
2 answers:
mylen [45]3 years ago
4 0
To use the equation we need a1 and d(the common difference).
We have a1 = 57, we need to find d.
93-84 = 9; 84-75=9; 75-66=9; 66-57=9
d = 9
a350 = 57 + (350-1)(9)
a350 = 57 + (349)(9)
a350 = 57 + 3141
a350 = 3198
Bogdan [553]3 years ago
4 0
Hello : 
57 ,    66  , 75  , 84  , 93 is the arithmetic sequence 
the common difference is : d= 93-84=84-75 =75-66 =66-57 = 9
by formula : <span>an = a1 + (n - 1) • d
n= 350
a350 = 57 +(350-1)(9)=3198.... (answer: </span><span>D. 3198)</span>
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