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Pachacha [2.7K]
3 years ago
5

Please help, I don't understand part a or b.

Mathematics
1 answer:
Serggg [28]3 years ago
5 0
Part A
25-9=16
16/2=8
The length of the rope holding the top right corner of the banner to the post is 8 feet long

Part B
13-9-2= 2 for width
25-8=16 16/2=8 for length 
Use the Pythagorean Theorem 
a^{2}+b^{2}=c^{2}
8^{2}+ 2^{2}= c^{2}
64+4=c^{2}
68=c^{2}
\sqrt{68}=  \sqrt{c}
34=c
The length of the rope from the bottom right corner of the banner to the post is 34 feet
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Answer and explanation:

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Let X be the number of mistake

P(X

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P(X>20)=1-(0.26+0.53)

P(X>20)=1-(0.79)

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b. A student makes 6 or more mistakes

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P(X\geq 6)=1-0.26

P(X\geq 6)=0.74

c. A student makes at most 20 mistakes

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Option a and c are complementary events.

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We have been given that since 2010, when 102390 Cases were reported, each year the number of new flu cases decrease to 85% of the prior year.

Since the flu cases decrease to 85% of the prior year, so the flu cases for every next year will be 85% of last year and decay rate is 15%.

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To find number of cases in 2020, we will substitute t=10 in our decay function as:

F(10)=102,390(0.85)^{10}

F(10)=102,390(0.1968744043407227)

F(10)=20,157.970260446597\approx 20,158

Therefore, 20,158 cases  will be reported in 2020.

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Answer:

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According to the drawing we can see the lines

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Answer:

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