A(n)=4+4(n-1)
a(n)=4+4n-4
a(n)=4n
76=4n
n=19
The sum of any arithmetic sequence (series are infinite) is:
(a+a(n))(n/2)
The average of the first and last terms times the number of terms, in this case we found that n=19 so:
19(4+76)/2=760
What is -3 times x squared?-9x
Answer: 0.6666... (never ending digit)
Step-by-step explanation:
2/3 divide the numerator, '2' by the denominator '3'
Answer:
c
Step-by-step explanation:
I GOT THE POWER OF GOD AND ANIME ON MY SIDE
Answer:
85.
Step-by-step explanation: