Find a10 of the arithmetic sequence: -4,2,8,14,20
the formula is : an=a1+(n-1)d
so is this correct: a10=-4+(10-1)+6=11?
Find a10 of the arithmetic sequence: -4,2,8,14,20
the formula is : an=a1+(n-1)d
so is this correct: a10=-4+(10-1)+6=11?
You have your formula of:an=a1+(n-1)d
a10=-4 + (10 -1) x 6=50. Why did you change d to + instead of X??.
Oh right I guess because the sequence was adding 6 I put a + sign. thank you for ur help!