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3 years ago

Are there about 100 elements

Mathematics

2 answers:

rjkz [21]3 years ago

4 0

Yea but there are precisely 118 total that we know of

Mrac [35]3 years ago

3 0

There are about 100 elements, I believe that there were 115 elements in 2001 , now the periodic table contains 118 elements .

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Maya has 5/6 cup of ice cream. How many 1/4-cup servings are in 5/6 cup of ice cream?

Alla [95]

Answer:

3 and 1 over 3.

Step-by-step explanation:

We divide 5/6 by 1/4.

5 /6 / 1/4

= 5/6 * 4

= 20/6

= 3 2/6

= 3 1/3.

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3 years ago

Read 2 more answers

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I hope that answers your question!

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3 years ago

What is nine plus ten? If you get it right I’ll give you brainliest

Finger [1]

Answer:

Step-by-step explanation:

ok is this just a joke?

nine plus ten

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3 years ago

A box contains 3 coins. One coin has 2 heads and the other two are fair. A coin is chosen at random from the box and flipped. If

Blababa [14]

Answer: Our required probability is $\dfrac{1}{2}$

Step-by-step explanation:

Since we have given that

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Number of coin has 2 heads = 1

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Probability of getting one of the coin among 3 = $\dfrac{1}{3}$

So, Probability of getting head from fair coin = $\dfrac{1}{2}$

Probability of getting head from baised coin = 1

Using "Bayes theorem" we will find the probability that it is the two headed coin is given by

$\dfrac{\dfrac{1}{3}\times 1}{\dfrac{1}{3}\times \dfrac{1}{2}+\dfrac{1}{3}\times \dfrac{1}{2}+\dfrac{1}{3}\times 1}\\\\=\dfrac{\dfrac{1}{3}}{\dfrac{1}{6}+\dfrac{1}{6}+\dfrac{1}{3}}\\\\=\dfrac{\dfrac{1}{3}}{\dfrac{2}{3}}\\\\=\dfrac{1}{2}$

Hence, our required probability is $\dfrac{1}{2}$

No, the answer is not $\dfrac{1}{3}$

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3 years ago

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Zigmanuir [339]

Answer:

If we reject the null hypothesis based on the evidence, then our conclusion should be Option c.

If we do not reject the null hypothesis based on the evidence, then our conclusion should be Option a.

Step-by-step explanation:

We are given that the FDA wants to set up a hypothesis test to show that the new drug is safe before approving it by assuming it to be unsafe.

So, Null hypothesis, $H_0$ = New drug is unsafe

Alternate Hypothesis, $H_1$ = New drug is safe

<em>Now, if we reject the null hypothesis based on the evidence, then our conclusion should be that : </em>

There is sufficient evidence to believe that the new drug is safe because rejecting null hypothesis means that alternate hypothesis is accepted with required evidence.

<em>And If we do not reject the null hypothesis based on the evidence, then our conclusion should be that : </em>

There is insufficient evidence to believe that the new drug is safe because not rejecting null hypothesis means that we are not ready with enough evidence to assume that new drug is safe.

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3 years ago