3 years ago

What is X divided by 3 = 15

Mathematics

1 answer:

Natali5045456 [20]3 years ago

7 0

Answer:

x=5

Step-by-step explanation:

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Is 12 a prime or composite? (Can someone clearly explain what a prime and composite are?)

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12 is a composite number.

Composite Number-A whole number that can be divided evenly by numbers<span> other than 1 or itself.

Prime Number- </span> A Prime Number<span> can be divided evenly only by 1, or itself. </span>

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out of 125 children at summer camp 45 signed up for swimming 38 for arts and crafts if a child is randomly selected what is the

anzhelika [568]

P(s) = 45/125 = 0.360
P(A&C) = 38/125 = 0.304
Probability that one is not in Arts and Crafts = 1- P(A&C) = 1-0.304 = 0.696

Therefore,
Probability that the child selected is in swimming when its known they didn't sign for Arts and craft = Probability they signed for swimming * Probability that they didn't sign for Arts and Crafts = 0.360*0.696 = 0.25056

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Semmy [17]

Answer:

–1.75

Step-by-step explanation:

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PLEASE HELP LAW OF COSINES

chubhunter [2.5K]

The Law of Cosine states
cos $C=(a^2+b^2-c^2)/2ab$

so plugging in the numbers gives us

cos $J=(13^2+19^2-11^2)/2(13*19) = 409/494$

We now have cosJ so plug that into your calculator and find arccos (arccos(cos(J)) = J)
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rounding your answer will give you 34°

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