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sesenic [268]
3 years ago
6

What is P(A and B)?

Mathematics
2 answers:
Wittaler [7]3 years ago
6 0

Answer: the fraction 3/7

=====================================================

Explanation:

We have 7 places: India, Tokyo, Houston, Peru, New York, Tijuana, Canada

Out of these 7 places, 3 of them are both a city and in North America. Those three places are: Houston, New York, Tijuana

We divide the two values (smaller over larger) to get the final answer 3/7

writing P(A and B) is shorthand for asking for the probability of getting a city AND that place is also in north america as well.

Amiraneli [1.4K]3 years ago
6 0

Answer is 3/7 hope it helps

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Ratio of x and 2 is not greater than 14
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True or false: sec^-1(0.5) is undefined. explain your answer
ICE Princess25 [194]

Here we get the statement:

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And we want to see if this is true or false, so let's use the properties that we know to find that this is false.

Remember that the sec function is defined as:

sec(x) = \frac{1}{cos(x)}

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Then we can conclude that the function is not undefined at 0.5, so the statement is false.

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brainly.com/question/16453813

6 0
3 years ago
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What’s the answer and how do I solve this ?
sammy [17]
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A book sold 31,100 copies in its first month of release. Suppose this represents 7.8% of the number of copies sold to date. How
zvonat [6]
For this problem you can create a proportion.
Since 31,100 copies is 7.8% of the total copies spoke up to date you can make this proportion:
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After this you solve for x by isolating the variable.
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Since the question asks you to round to the nearest whole number which is 7 then the final answer would be 398,718
Answer: There has been 398,718 copies sold to date.
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3 years ago
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