Part a.
We have
Dividing,
Ugh. It would have killed them to choose a perfect square?
We can't really tell the sign on the common ratio; there's not enough information. Let's just pick the positive square root going forward.
Part b
Part c
Part d
20 comic books is the right awnser
325,000 is 324,650 rounded to the nearest thousand
Answer:
0.0256 or 16/625 or 2.56%
Step-by-step explanation:
The problem states that each light bulb operates independently of the other, so the probability doesn't change for each light bulb based on how many other light bulbs are working.
The probability of each light bulb working is 0.6 out of 1. However, we want the probability of it being broken.
1 - 0.6 = 0.4
This is the probability of one light bulb being broken. But there are 4 lightbulbs.
We can multiply 0.4 by itself 4 times, as the probability stacks.
0.4 * 0.4 * 0.4 * 0.4 = 0.0256 (<em>Also achieved by raising 0.4 to the power of 4)</em>
<em>To get the percentage, multiply it by 100. 2.56%</em>
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0.4 is equal to 40% or 40/100. If you simply, that fraction is equal to 2/5
2/5 * 2/5 * 2/5 * 2/5 = 16/625 (<em>Also achieved by raising 2/5 to the power of 4)</em>
Answer:
B
Step-by-step explanation: