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Tanya [424]
4 years ago
6

Can someone help me please?

Mathematics
1 answer:
nirvana33 [79]4 years ago
4 0

I don't like algebra pretending to be geometry.  These are supplementary angles, adding to 180 degrees, geometry done.

We'll assume the units on the 2 and 8 are degrees.

(x + 8) + (3x + 2) = 180

4x + 10 = 180

4x = 170

x = 170/4 = 85/2 = 42.5 degrees

The first angle is x+8 = 50.5 degrees

The second angle is 3x+2=129.5 degrees



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Explain why P(A|D) and P(D|A) from the table below are not equal.
trasher [3.6K]

Answer:

The Probability that Event A and  Event D occur is equal to the probability Event A occurs times the probability that Event D occurs, given that A has occurred.


P(A\cap D)=P(A)\cdot P(D/A)

We can find the values of P(A/D) and P(D/A) using the above form formula.

P(D/A)=\frac{P(A\cap D)}{P(A)} ;

P(A/D)=\frac{P(D\cap A)}{P(D)}

From the given table, we have the values of P(A), P(D), P(D\cap A) and P(A\cap D).

Since, Probability=\frac{The number of wanted outcomes }{the number of possible outcomes}

∴P(A)=\frac{8}{17}, P(D)=\frac{10}{17}, P(A\cap D)=\frac{2}{17} and P(D\cap A)=\frac{2}{17}

Now, putting these values in above formula we get,

P(D/A)=\frac{\frac{2}{17}} {\frac{8}{17}}

P(D/A)=\frac{2} {8}=\frac{1}{4}

P(D/A)= \frac{1}{4}.

P(A/D)=\frac{\frac{2}{17}} {\frac{10}{17}}=\frac{2}{10}

P(A/D)=\frac{1}{5}

As, you can see above that the values of P(A|D) and P(D|A) are not equal.









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3 years ago
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A) scrieti toate numerele naturale impare mai mici decat 17
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1, 3, 5, 7, 8, 11, 13, 15  is the answer.

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3 years ago
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Answer:

A

Step-by-step explanation:

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3 years ago
5.6^2 + 3.8^5 x 8.1^9 + 2.5^7<br> Help PLeAse
Mrac [35]

Answer:

1. Y=2

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Step-by-step explanation: make me brainliest

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