Samantha surveyed 30 students at Texas Middle School.
2 answers:
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Answer:
Step-by-step explanation:
Given that there are 20 non ionized containers and 73 ionized containers
Two samples are drawn without replacement
a) the probability that the first one selected is not ionized=
b) the probability that the second one selected is not ionized given that the first one was ionized
= When first one was ionized we got left over as 20 and 72
Hence =
c) If with replacement left over 20 and 73 and hence prob = 0.215 as in part a
d) the probability that both are ionized=
Problem 3
<h3>Camille is correct</h3>You subtract 4x from both sides, then divide both sides by -2 to fully isolate y.
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Problem 4
Multiply both sides by r to get
2mr = p-q
which is the same as
p-q = 2mr
The last step is to add q to both sides leading to this final answer
<h3>p = 2mr+q</h3>================================================
Problem 5
Answer:
This is the cube root of (3V)/(4pi)
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Work Shown: