Answer:
<h3>105m²</h3>
Step-by-step explanation:
AREA=


=105m²
0 lightbulbs would be expected to burn out in 1800 hours
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:
b
Step-by-step explanation: