3 years ago

Which is best estimate of each percent? 21/ of 387?

Mathematics

1 answer:

Phoenix [80]3 years ago

3 0

81.27 is the answer to 21% of 387 so a good estimate would be 82

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MariettaO [177]

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2 years ago

Given P(A)=0.78P(A)=0.78, P(B)=0.65P(B)=0.65 and P(A\cup B)=0.873P(A∪B)=0.873, find the value of P(A\cap B)P(A∩B), rounding to t

Sever21 [200]

Answer:

$P(A\ n\ B) = 0.557$

Step-by-step explanation:

Given

$P(A) = 0.78$

$P(B) = 0.65$

$P(A\ u\ B) = 0.873$

Required

Determine $P(A\ n\ B)$

From laws of probability, we have:

$P(A\ n\ B) = P(A) + P(B) - P(A\ u\ B)$

Substitute in values

$P(A\ n\ B) = 0.78 + 0.65 - 0.873$

$P(A\ n\ B) = 0.557$

Hence, $P(A\ n\ B)$ <em> is calculated to be 0.557</em>

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2 years ago

Please help if you can Thank you so much!

Vladimir [108]

Answer:

Answers in explanations, hope they're correct!

Step-by-step explanation:

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2 years ago

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What is the greatest common factor (gcf) of 40 and 75?

Reil [10]

Answer:

the greatest common factor of 75 and 40 is 5

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1 year ago

You and your friend are using ribbon to make cards. Your ribbon is 78 inch wide. Your friend's ribbon is 58 inch wide. How much

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Answer:

20 inches longer

Step-by-step explanation:

78-58= 20

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1 year ago

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