Let

be a probability that i-th light fails, where i=1,2,3. Then,

is the probability that i-th light remain bright.
<span>If the lights fail independently of each other, the probability that a string of lights will remain bright for two years is:
</span>

.
The question is asking to state the expression for the volume of the pyramid base on the side of the pyramid, in my further research and calculation, I would say that the answer would be V= 1/2s^3. I hope you are satisfied with my answer and feel free to ask for more
Answer:
0.25×308=$77
185-77=$108
108/0.50×1
=216photos
Total photos=216+308
=524photos
Step-by-step explanation:
1) Slope equals -0.667/2.000=-0.333
x-intercept =12/1=12.00000
y-intercept =12/3=4
x+3y=12
Answer: 4
2) Slope equals 2
x-intercept=5/2=2.5000
y-intercept=5/-1=-5.00000
Answer: -5.00000