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3 years ago

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When writing a set of hypotheses for a situation, which of the following is true?

2 answers:

Elden [556K]3 years ago

8 0

<em>*100% CORRECT ANSWERS</em>

Question 1

When writing a set of hypotheses for a situation, which of the following is true?

The null hypothesis is a claim the researcher is trying to disprove

Question 2

When writing a set of hypotheses for a situation, which of the following is true?

The alternate hypothesis is a claim the researcher is trying to prove

Andre45 [30]3 years ago

4 0

Answer:

The Null hypothesis is a claim the researcher is trying to disprove. (I think)

Step-by-step explanation:

The null hypothesis states that there is no relationship between the two variables being studied (one variable does not affect the other). It states results are due to chance and are not significant in terms of supporting the idea being investigated.

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Volume of the second dwarf planet (r₂ = 829 mi):

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$V_1-V_2\approx7.679\cdot10^8\pi-7.5963\cdot10^8\pi=0.0827\cdot10^8\pi=\boxed{8270000\pi\,\text{mi}^3}$

or if we want exact value (we use (a³-b³) = (a-b)(a²+ab+b²) ):

$V_1-V_2=\dfrac{4}{3}\cdot\pi\cdot r_1^3-\dfrac{4}{3}\cdot\pi\cdot r_2^3=\dfrac{4}{3}\pi(r_1^3-r_2^3)=\dfrac{4}{3}\pi(832^3-829^3)=\\\\\\=\dfrac{4}{3}\pi(832-829)(832^2+832\cdot829+829^2)=\\\\\\=\dfrac{4}{3}\pi\cdot3(692224+689728+687241)=4\pi\cdot2069193=\boxed{8276772\pi\,\text{mi}^3}$

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