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3 years ago

In a triangle a=20 and c=29 but how long is side b ?

Mathematics

1 answer:

Afina-wow [57]3 years ago

6 0

A^2+b^2=c^2
20^2+b^2=29^2
400+b^2=841
-400. -400
b^2=√441
b=21

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Increase £16470.45 by 3.5%

Korvikt [17]

Try this:
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3 years ago

Sets A and B are independent events and are mutually exclusive

Lynna [10]

The solutions are ${P}({A} \text { and }B})=0$ and $P}({A} \text { or } {B})=\frac{7}{12}$

Explanation:

Given that the sets A and B are independent events and are mutually exclusive events.

We need to determine the value of $P(A \text { and } B)$ and $P(A \text { or } B)$

The value of $P(A \text { and } B)$ :

Since, the sets A and B are mutually exclusive events, it is impossible for the two events to occur together.

Hence, we have,

${P}({A} \text { and }B})=0$

Thus, the value of $P(A \text { and } B)$ is 0.

The value of $P(A \text { or } B)$ :

For mutually exclusive events, the value of $P(A \text { or } B)$ is given by the formula,

$P(A \text { or } B)=P(A)+P(B)$

Substituting the values, we get,

$P(A \text { or } B)=\frac{1}{4}+\frac{1}{3}$

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Hence, the value of $P(A \text { or } B)$ is $\frac{7}{12}$

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4 years ago

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vova2212 [387]

Answer:

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3 years ago

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aleksandr82 [10.1K]

Answer:

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0.4x + 9.2 = 10

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3 years ago

Read 2 more answers

There are 8,000 books in a library. There are 5,920 non-fiction books. What percent of the books are non–fiction books?

shusha [124]

Answer:

74%

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Given data

Number of books= 8000

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3 years ago