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3 years ago

A postulate is a statement requiring proof.true or false

Mathematics

2 answers:

g100num [7]3 years ago

5 0

Answer:

The statement is false.

Step-by-step explanation:

A postulate is a statement requiring proof is a false statement.

Axioms and postulates are statements that we accept as true without proof.

Postulates are assumed truths, which form the basis for reasoning and discussions. These statements do not often require proof.

rewona [7]3 years ago

4 0

It is a completely false statement that a <span>postulate is a statement requiring proof. A postulate is always assumed to be true and so no proof is required. The correct option among the two options that are given in the question is the second option. I hope that this is the answer that has come to your desired help.</span>

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Answer:

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Answer:

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3 years ago

A box in a supply room contains 24 compact fluorescent lightbulbs, of which 8 are rated 13-watt, 9 are rated 18-watt, and 7 are

Marrrta [24]

Answer:

a) There is 17.64% probability that exactly two of the selected bulbs are rated 23-watt.

b) There is a 8.65% probability that all three of the bulbs have the same rating.

c) There is a 12.45% probability that one bulb of each type is selected.

Step-by-step explanation:

There are 24 compact fluorescent lightbulbs in the box, of which:

8 are rated 13-watt

9 are rated 18-watt

7 are rated 23-watt

(a) What is the probability that exactly two of the selected bulbs are rated 23-watt?

There are 7 rated 23-watt among 23. There are no replacements(so the denominators in the multiplication decrease). Then can be chosen in different orders, so we have to permutate.

It is a permutation of 3(bulbs selected) with 2(23-watt) and 1(13 or 18 watt) repetitions. So

$P = p^{3}_{2,1}*\frac{7}{24}*\frac{6}{23}*\frac{17}{22} = \frac{3!}{2!1!}*\frac{7}{24}*\frac{6}{23}*\frac{17}{22} = 3*\frac{7}{24}*\frac{6}{23}*\frac{17}{22} = 0.1764$