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sasho [114]
3 years ago
15

Need help with this

Mathematics
1 answer:
JulsSmile [24]3 years ago
6 0
First, change the measurements of the pole to m so all of the units are the same.
41 cm=.41 m
72 cm=.72 m

Then, let x represent the height of the building

30/x=.72/.41
x=30*.72/.41
x=52.68 m
round to 52.7 m
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Answer:

P(E^c)=\dfrac{1}{3}

Step-by-step explanation:

The sample space for the experiment  is:

S=\{9,10,11,12,13,14,15,16,17,18,19,20\}

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Given an event E such that:

E=\{10,11,12,13,14,15,16,17\}

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The outcomes in the complement of E are the outcomes in S that are not in E.

E^c=\{9,18,19,20\}

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Therefore:

P(E^c)=\dfrac{n(E^c)}{n(S)}\\ =\dfrac{4}{12}\\P(E^c)=\dfrac{1}{3}

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Step-by-step explanation:

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The Venn diagram is given below. Then the number of students who have brother and sister will be 6.

<h3>What are sets?</h3>

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Then the Venn diagram will be

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brainly.com/question/8053622

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