2 answers:
Answer:28
Step-by-step explanation:
15+7•4-15
15+28-15
43-15
28
Answer:
26
Step-by-step explanation:
15+7x4 - (11 + 6)
11+6 = 17
7x4 = 28
15+28 = 43
43 - 17 = 26
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The sum of a geometric sequence is:
s(n)=a(1-r^n)/(1-r) in our case:
s(n)=3(1-4^n)/(1-4)
s(n)=-(1-4^n)
s(n)=(4^n)-1 and s=1023
(4^n)-1=1023
4^n=1024
n ln4=ln1024
n=(ln1024)/(ln4)
n=5
Answer: 49.5
Step-by-step explanation:
The answer to 18m + 27n would be
Answer:
see below
Step-by-step explanation:
(7,0) is the right option hope this helps :D
