Step-by-step explanation:
al nth term:
numerator:

denominator:

so nth term :

b). 1; 11; 27; 49
first difference: 10; 16; 22
second difference :6
formula for 1st difference:3a+b
formula for 2nd difference:2a
Therefore:
2a=6
a=3
3a+b=10
sub in a
3(3)+b=10
9+b=10
b=1
sub into quadratic formula






So Tn:

Answer:
range
Step-by-step explanation:
,domain describes the input values and range describes the output
Answer: the answer is C because it is the only one that matches with one pair on the table wich is (4,2)
What you would do is multiply 72 and 3 so it says three times so you multiply 72 three times so this would equal 638
round it to a whole number of 100 m witch i think would be 15700 m
also i dint realize it said round it to a whole number and to 100 m so it would also be a whole number of 16000 i think if not this than 20000