someone show me how to do this please?
What is the d value in the following arithmetic sequence? -7, -2, 3, 8, ...
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Vocaloid (vocaloid):
do you notice the pattern in the sequence?
OpenStudy (anonymous):
it goes by 5
Vocaloid (vocaloid):
right, it increases by 5 each time so d = 5
OpenStudy (anonymous):
ohh okay! thank you!
OpenStudy (anonymous):
one more question
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OpenStudy (anonymous):
@Vocaloid ???
Vocaloid (vocaloid):
sure
OpenStudy (anonymous):
for the same set of numbers, it ask what is the 25th term, whats an easier way to find it without having to write it all out till i get the 25th one?
Vocaloid (vocaloid):
there's a formula for arithmetic sequences
an = a1 + (n-1)d
where a1 is the first term (-7), d is the common difference (5) and n is the term we want (25)
OpenStudy (anonymous):
okay thank you! btw, looking ahead i might have more question but ill post them seperatly, is it okay if i tag you? so i can give you more metals too.
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