Let the nth term be given by the expression an²+bn+c.
We can write A: -7=a+b+c B: -6=4a+2b+c C: -3=9a+3b+c
D: B-A: 1=3a+b
E: C-B: 3=5a+b
E-Dm 2=2a, a=1, b=1-3=-2, c=-7-1+2=-6.
So the expression for the nth term is n²-2n-6.
Put n=4: 16-8-6=2 which fits the sequence.
Put n=5: 25-10-6=9 which also fits the sequence.
So the nth term is
Answer:
D
Step-by-step explanation:
If it is September, then it is my birthday
Answer:
players to coach ratio.
What is a ratio, a ratio is diplayed like this 2:3
If you were to put the ration of -> players:coach
The ratio would be 48:6
yes, you can simplify a ration,
48/6 = 8
6/6 = 1
ration is 8:1
Answer: 8
Step-by-step explanation:
8^2 + 8^2 = c^2
64 + 64 = c^2
128=c^2
2
2* 2 
4 * 2
8
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