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luda_lava [24]
3 years ago
12

What is the value of n?

Mathematics
2 answers:
bogdanovich [222]3 years ago
8 0

Answer:

<h3>B. 85°</h3>

Step-by-step explanation:

Look at the picture.

We know: Angles on one side of a straight line always add to 180°.

Therefore:

\alpha=180^o-142^o=38^o\\\\\beta=180^o-133^o=47^o

We know: the sum of the measures of the angles of the triangle is equal to 180 °.

Therefore:

\gamma+47^o+38^o=180^o

\gamma+85^o=180^o      <em>subtract 85° from both sides</em>

\gamma=95^o


n^o+95^o=180^o\to n^o=180^o-95^o=85^o

Triss [41]3 years ago
3 0

Answer:

38

Step-by-step explanation:

n+142=180(angle on a straight line)

n=180-142

n=38

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30 are present 10 are absent

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75%=3/4

so 3/4 of them are absent

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Solve for y in terms of m by cross-multiplying.<br><br><img src="https://tex.z-dn.net/?f=%5Cfrac%7By%7D%7Bm%7D%20%3D%5Cfrac%7B1%
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Step-by-step explanation:

y          1

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6 0
3 years ago
The mean one-way commute to work in Chowchilla is 7 minutes. The standard deviation is 2.4 minutes, and the population is normal
adell [148]

Answer:

The answer is below

Step-by-step explanation:

Given that:

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z=\frac{x-\mu}{\sigma}

a) For x < 2:

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b) For x = 2:

z=\frac{x-\mu}{\sigma}=\frac{2-7}{2.4} =-2.08

For x = 11:

z=\frac{x-\mu}{\sigma}=\frac{11-7}{2.4} =1.67

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c) For x = 11:

z=\frac{x-\mu}{\sigma}=\frac{11-7}{2.4} =1.67

From normal distribution table,  P(x < 11) = P(z < 1.67) = 0.9525

d) For x = 2:

z=\frac{x-\mu}{\sigma}=\frac{2-7}{2.4} =-2.08

For x = 5:

z=\frac{x-\mu}{\sigma}=\frac{5-7}{2.4} =-0.83

From normal distribution table, P(2 < x < 5) = P(-2.08 < z < -0.83 ) = P(z < -0.83) - P(z < -2.08) =  0.2033- 0.0188 = 0.1845  

e) For x = 5:

z=\frac{x-\mu}{\sigma}=\frac{5-7}{2.4} =-0.83

From normal distribution table,  P(x < 5) = P(z < -0.83) = 0.2033

8 0
4 years ago
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Allisa [31]

Answer:

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Step-by-step explanation:

Conversion factor: 1000

2) mL = L * 1000

3) mL = 3.4 * 1000

4) mL = 3400

3 0
3 years ago
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