Answer:
The expression for the nth term is Tn = 8n -7
Step-by-step explanation:
Here, we are to find an expression for the nth term of the sequence.
Mathematically, the nth term of an arithmetic sequence can be expressed as;
Tn = a + (n-1)d
for T2, the equation is
a + d = 9
for T4, the equation is
a + 3d = 25
we can substitute the equation of T2 into T4 but we first need to rewrite T4
a + d + 2d = 25
9 + 2d = 25
2d = 25 -9
2d = 16
d = 16/2
d = 8
now since a + d = 9
a = 9-d
a = 9-8
a = 1
So the expression for the nth term would be;
1 + (n-1)8
1 + 8n - 8
= 8n -8+1
= 8n -7
Answer:
1.) BC, AD, FI.
2.) Parallel.
Step-by-step explanation:
I can't get the other two I'm sorry mate like I really gotta go. Before my mum gets mad. Got chores. Good luck.
Anything more or less than 1 would result in a different outcome, and anything times 1 results in itself.
Answer:
most graphs don't go passed 10 so it's undefined
Step-by-step explanation:
Answer:
GCF is 1
Step-by-step explanation:
The factors of 11 are: 1, 11
The factors of 18 are: 1, 2, 3, 6, 9, 18
Then the greatest common factor is 1
