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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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A ski gondola carries skiers to the top of a mountain. assume that weights of skiers are normally distributed with a mean of 199
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A) maximum mean weight of passengers = <span>load limit ÷ number of passengers
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maximum mean weight of passengers = 3750 </span>÷ 25 = <span>150lb

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z = (value - mean) / stdev
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We need to find P(z > -1.20) = 1 - P(z < -1.20)

Now, look at a standard normal table to find <span>P(z < -1.20) = 0.11507, therefore:
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Hence, <span>the probability that the mean weight of 25 randomly selected skiers exceeds 150lb is about 88.5%</span> </span>

C) With only 20 passengers, the new maximum mean weight of passengers = 3750 ÷ 20 = <span>187.5lb

Let's repeat the steps of point B)

z = (187.5 - 199) / 41
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D) The mean weight of skiers is 199lb, therefore:
number</span> of passengers = <span>load limit ÷ <span>mean weight of passengers
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3 years ago
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I think the answer is C
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Answer:

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Step-by-step explanation:

6 0
2 years ago
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Our of the four runners: Alex, Ben, Curtis, and Dan, the oldest came in second place. Alex ran the distance faster than Curtis,
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Considering the situation described, the classification of the runners is given as follows:

Dan - Ben - Alex - Curtis.

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The oldest came in second place. Ben is older than Alex, and Curtis is older than Dan, hence either Ben or Curtis finished second.

Alex ran the distance faster than Curtis, and Dan ran faster than Ben and Curtis, hence considering the above observation Ben finished second and the classification is:

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A similar problem, in which a situation is interpreted, is given at brainly.com/question/5660603

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5 0
1 year ago
Maria has decided to invest to help with her retirement savings. How much would she have to invest to have $113,400 after 20 yea
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x = ¹¹³⁴⁰⁰/₍₂.₀₁₆...₎

x = 56225.5263 → 56226

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2 years ago
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