Answer: n = 17
Step-by-step explanation: n= -68/-4= 17
you Need to think of 2 square numbers that add up to make 80
answer:
64 + 16
this means that x = 8 and y = 4
because of the square roots
or
y = 4
and
x = 8
Answer:
The sum of the first six terms is 38.39
Step-by-step explanation:
This is a geometric sequence since the common difference between each term is
Thus,
To find the sum of first six terms, we need to find the fifth and sixth term of the sequence.
To find the fifth term:
The general form of geometric sequence is
To find the fifth term, substitute in
To find the sixth term, substitute in
To find the sum of the first six terms:
The general formula to find Sn for is
Thus, the sum of first six terms is 38.39
Answer:
Step-by-step explanation:
Let the angle of depression be x.