It would be written as 721/10. Hope this helps.
A1 = first term
a1 = 15
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d = common difference
d = (second term) - (first term)
d = a2 - a1
d = 9-12
d = -3
The negative common difference indicates that the terms are decreasing
Each time we subtract 3, or add -3, to get the next term.
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nth term of arithmetic sequence
an = a1 + d(n-1)
an = 15 + (-3)(n-1)
an = 15- 3n + 3
an = 18 - 3n
Answer is choice D
Answer:
98,100,A
Plz mark me brainliest.
Step-by-step explanation:
Im pretty sure (like 99.9999999% sure) that 660 is not 10 times as much as 600 because when you multiply 600 by 10 you don't get 660. You get 6000.
Answer:
9:11
Step-by-step explanation:
