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3 years ago

What angle is adyacente to

Mathematics

1 answer:

Hunter-Best [27]3 years ago

8 0

Answer:∡FGA

Step-by-step explanation: Adjacent angle is adjoining angle so that ans is ∡FGA

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A survey finds customers are charged incorrectly for an item 20% of the time. Suppose a customer purchases 14 items. Find the p

WITCHER [35]

Answer:

55.2% probability that the customer is charged incorrectly on at least 3 items.

Step-by-step explanation:

For each item, there are only two possible outcomes. Either it is charged incorrectly, or it is not. The probability of an item being charged incorrectly is independent from other items. So 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.

A survey finds customers are charged incorrectly for an item 20% of the time.

This means that $p = 0.2$

Find the probability that the customer is charged incorrectly on at least 3 items.

Either the customer is charged incorrectly on 2 or less items, or he is charged on at least 3. The sum of the probabilities of these events is 1.

$P(X < 3) + P(X \geq 3) = 1$

We want $P(X \geq 3)$

$P(X \geq 3) = 1 - P(X < 3)$

In which

$P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)$

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

$P(X = 0) = C_{14,0}.(0.2)^{0}.(0.8)^{14} = 0.0440$

$P(X = 1) = C_{14,1}.(0.2)^{1}.(0.8)^{13} = 0.1539$

$P(X = 2) = C_{14,2}.(0.2)^{2}.(0.8)^{12} = 0.2501$

$P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.0440 + 0.1539 + 0.2501 = 0.448$

$P(X \geq 3) = 1 - P(X < 3) = 1 - 0.448 = 0.552$

55.2% probability that the customer is charged incorrectly on at least 3 items.

6 0

3 years ago

Write each ratio as a fraction in simplest form.

antiseptic1488 [7]

Sorry but I don’t now what you are talking about sorry but I will help you

5 0

4 years ago

75 POINTS !!!!!!!!!!!

____ [38]

The correct answer for the question that is being presented above is this one: "90 degrees." <span>When we rotate the triangle 90 degrees; it's basically upside down. A triangle has 18- degrees therefore 90 is correct.</span>

Here are the following choices:
50° 60° 70° 90°

5 0

4 years ago

Read 2 more answers

PLEASE HELP...........

shtirl [24]

Answer:

increases

decreases but stays above 0.

Step-by-step explanation:

Increases without bound. You are going left which means that x is getting smaller and smaller (large negatives are very small).

As x increases without bounds, f(x) approaches 0 but does not go minus.

5 0

3 years ago

katen-ka-za [31]

It takes the robot 1.4 hours (or 1 hour and 24 minutes) to complete one task

the robot can complete 0.714 tasks per hour

6 0

3 years ago