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3 years ago

Find the value of X Need help ASAP.

Mathematics

1 answer:

Pavlova-9 [17]3 years ago

4 0

1. 4 inside angles must sum to 360:

X = 360-45-65-95 = 155

2. All the outside angles must sum

To 360:

2x + 70+ 86 + 9 = 2x + 248

2x = 360-248

2x = 112

X = 112/2 = 56

3. Sum of interior angles for 6 sides figure = 720.

X = 720 - 90-120-130-140-150

X = 90

4. Exterior angles sum to 360

4x +x + 98 + 162 = 360

5x + 260 = 360

5x = 100

X = 100/5

X = 20

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3 years ago

The workers' union at a particular university is quite strong. About 96% of all workers employed by the university belong to the

LekaFEV [45]

Answer:

The probability that exaclt x of the members are union members from the n interviewed is given by:

$P(X = x) = C_{n,x}.(0.96)^{x}.(0.04)^{n-x}$

Step-by-step explanation:

For each worker, there are only two possible outcomes. Either they are union members, or they are not. Members are independent of other members. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

About 96% of all workers employed by the university belong to the workers' union.

This means that $p = 0.96$

What is the probability that exactly of the workers interviewed are union members

We want probability of x, from n workers interviewed. So

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = x) = C_{n,x}.(0.96)^{x}.(0.04)^{n-x}$

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3 years ago

What is the area, measured in square centimeters, of the green shape

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Answer:

Step-by-step explanation

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2 years ago

Pls help now, if possible.

stiks02 [169]

Answer:

2 hours

Step-by-step explanation:

When we take 3 miles per hour so we will take 2 hours to complete 6 miles.

I hope this helps you.

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3 years ago

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