What’s are prime numbers

2 answers:

8 0

Step-by-step explanation:A cardiologist is a doctor with special training and skill in finding, treating and preventing diseases of the heart and blood vessels

Answer:

A prime number is a whole number greater than 1 whose only factors are 1 and itself. The first few prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29

lesya [120]3 years ago

4 0

Answer: a prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers.

Step-by-step explanation:

For example, 5 is a prime because the only ways of writing it as a product, 1 x 5 or 5 x 1, involve five itself

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Answer:

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Step-by-step explanation:

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Kittens weigh about 100 grams when born and gain 7 to 15 grams per day.If a kitten weighed 100 grams at birth and gained 8 grams

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100 + 8d = 300; d = 25; The kitten will triple its weight in 25 days

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Evaluate -1/2A when

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Actual answer is:

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In a given course a student receives preliminary examination grades of 81, 85, and 95. The final examination is weighed for one-

Vsevolod [243]

Answer:

B. 96

Step-by-step explanation:

Let x represent score of final third exam.

We have been given that in a given course a student receives preliminary examination grades of 81, 85, and 95.

Let us find average of preliminary scores.

$\frac{81+85+95}{3}=\frac{261}{3}=87$

We have been given that the final examination is weighed for one-third and the average of the preliminary grades is weighed as 2/3 of the final grade. This means that final grade is equally weighed into 3 parts. The two parts are 87 each and third part is x.

Using our given information, we can set an equation as:

$\frac{87+87+x}{3}=90$