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wariber [46]
3 years ago
7

Use the law of sines to complete an expression that represents the angle measure x

Mathematics
1 answer:
Assoli18 [71]3 years ago
6 0
Answer: 51.9 degrees
Step by step explanation:
Sin(71)/35.6=Sin(x)/21.3
21.3Sin(71)=35.6Sin(x)
21.3Sin(71)/25.6=sin(x)
Sin^-1(21.3Sin(71)/25.6)=x
51.87827502 degrees=x
51.9= angle x
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Twelve members of a band purchase one beverage each during a break at practice. Exactly 5 of the 12 members bought bottled water
Hoochie [10]

Answer:

70

Step-by-step explanation:

You have to use ratios.  If 5 of 12 members bought water, then x of 168 members will buy water.

\frac{5}{12}  = \frac{x}{168}\\12x = 840\\x = 70

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8 0
3 years ago
What’s the answer my phone calculator isn’t working
zubka84 [21]

Answer:

4.33

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3 years ago
g A random sample of 100 students was taken. Eighty-five of the student in the sample experienced anxiety during the exam. We ar
BaLLatris [955]

Answer:

The test statistic is z = 1.25

Step-by-step explanation:

We are interested in determining whether or not the proportion of the student who experience anxiety during the exam is significantly more than 80%.

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At the alternate hypothesis, we test if the proportion is more than 80%, that is:

H_a: p > 0.8

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z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

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This means that \mu = 0.8, \sigma = \sqrt{0.2*0.8} = 0.4

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The test statistic is

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.85 - 0.8}{\frac{0.4}{\sqrt{10}}}

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The test statistic is z = 1.25

4 0
3 years ago
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umka21 [38]
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Naya [18.7K]
Multiply 4 * 5, which equals 20, and add the two zeroes(from 40 and 50) on the end.

That gives us:

2000
7 0
3 years ago
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