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Sergio039 [100]
3 years ago
12

Find the distance across the lake. Assume the triangles are similar.

Mathematics
2 answers:
irina1246 [14]3 years ago
4 0

Answer:

a

Step-by-step explanation:

babunello [35]3 years ago
4 0

Answer:

A.   L = 240 m

Step-by-step explanation:

<u>use similar triangle </u>

L / 60 = 80 / 20

L = (80 * 60) / 20

L = 240 m

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Answer:

6.3 km.

Step-by-step explanation:

The question asks for kilometers, so all amounts have to be calculated in the same units -- kilometers.

Convert meters to kilometers.

600 m = .6 km

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Add the amounts:

Fri.:       .6 km

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6.3 km.

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3 years ago
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Suppose that lithium calculator battery with a charge of 3 volts, actually has a voltage with uniform distribution between 2.93
Dmitrij [34]

Answer:

b. E(X) = 3.015, STDEV(X)= 0.049, P (X ≤ 2.98) = 0.2941

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The mean of the uniform probability distribution is:

M = \frac{a + b}{2}

The standard deviation of the uniform distribution is:

S = \sqrt{\frac{(b-a)^{2}}{12}}

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P(X \leq x) = \frac{x - a}{b-a}

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This means that a = 2.93, b = 3.1. So

Mean:

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Standard deviation:

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P(X \leq 2.98) = \frac{2.98 - 2.93}{3.1 - 2.93} = 0.2941

So the correct answer is:

b. E(X) = 3.015, STDEV(X)= 0.049, P (X ≤ 2.98) = 0.2941

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Step-by-step explanation:

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3 years ago
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Answer:

Step-by-step explanation:

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