Any geometric sequence can be expressed as:
a(n)=ar^(n-1), a=initial term, r=common ratio, n=term number.
Here we are give the initial term so we have to solve to solve for the common ratio...
a(5)=-1280 and a(1)=-5 so
-1280=-5r^(5-1)
-1280=-5r^4
256=r^4
256^(1/4)=r
4=r, so our sequence is:
a(n)=-5(4^(n-1)), so the 7th term is:
a(7)=-5(4^6)
a(7)= -20480
Answer:
A)5 is the answer because she already has 75 + 25=100 and she needs 150 more so 150÷25=5
Answer:
5x-7 has to equal to something smaller than 13
5x-7=5
Answer:
(-14+3/2b) - (1+8/2b) goes with -15-5/2b
(5+26)+2b+3/2) goes with 4b+13/2
(-10+b)+(7b-5) goes with 8b-15
(7/2b-3)-(8+6b) goes with -5/2b-11
Step-by-step explanation:
Its C! Hope this helps and can you mark me as brainliest :))
