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Vsevolod [243]
3 years ago
12

Rory earned an 84% on his test. He answered 21 questions correctly. How many total questions were on the

Mathematics
1 answer:
Anna35 [415]3 years ago
4 0

Answer:

21 is 84% to 25, so there would be 25 total questions on the test

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The probability of getting a head when a biased coin is tossed is 2/5. The coin is tossed three times. Find the following probab
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Answer:

<u>P(three tails) = 27/125 or 21.6%</u>

<u>P(two tails followed by one head) = 18/125 or 14.4%.</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the questions correctly:

Probability of getting a head when a biased coin is tossed = 2/5

therefore,

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The center is (0, -3.2) and the radius is 2.2.
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What is the value of the expression-2.1(4.7+(-7.4)
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