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gizmo_the_mogwai [7]
3 years ago
13

6,870,000,000,000,000 appear in scientific notation on a calculator screen?

Mathematics
2 answers:
vazorg [7]3 years ago
6 0
6.87 times 10 to the power of 15
alina1380 [7]3 years ago
4 0
This answer would be 6.87
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In a triangle ABC, if angle B= 60° and the ratio of two sides is a: C= 2: sqrt3 + 1, then angle A=
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Answer:

<em>Well, Your best answer will be is </em><em>45° </em><em>Because, Given two sides and the angle in between,  we can calculate for ∠A using the sine law: </em>

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<em>b / sin B = a / sin A </em>

<em> </em>

<em>2.45 / sin 60 = 2 / sin A </em>

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<em>sin A = 0.707 </em>

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<em>A = 45˚ </em>

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<em>Therefore the answer is letter A: 45 </em><em>Good Luck! </em>

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72

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The big bang is a theory of how our universe began. Dust that created the stars and planets came from the epicenter of the big bang and it's the same dust that makes up you and every other living or non-living thing in existence. This relies on the big bang being true. 
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Clinical trials involved treating flu symptoms with a new medicine. Among 724 patients treated
schepotkina [342]

According to the null hypothesis, the test statistic of the proportion is of z = 120.1.

<h3>What is the null hypothesis?</h3>

The claim is that the rate of nausea is greater than the 6% rate experienced by flu patients given a placebo. At the null hypothesis, we consider the claim as false, hence the null hypothesis is:

H_0: p \leq 0.06

<h3>What is the test statistic?</h3>

The test statistic is given by:

z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}

In which:

  • \overline{p} is the sample proportion.
  • p is the proportion tested at the null hypothesis.
  • n is the sample size.

In this problem, the parameters are:

p = 0.06, n = 724, \overline{p} = \frac{72}{724} = 0.0994

Hence, the test statistic is given by:

z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}

z = \frac{0.0994 - 0.06}{\sqrt{\frac{0.06(0.94)}{724}}}

z = 120.1

You can learn more about test statistic at brainly.com/question/16313918

8 0
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