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1 answer:
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Answer:
Step-by-step explanation:
This is the answer because in a 30-60-90 triangle each side has a different formula to find it, the side across from angle 60 is half the hypotenuse and root 3
The margin of error is a statistic that expresses how much random sampling error there is in a survey's results. The Margin of error in this survey is 1%.
<h3>What is the margin of error?</h3>The margin of error is a statistic that expresses how much random sampling error there is in a survey's results. The wider the margin of error, the less confident one should be that a poll result reflects the outcome of a population-wide survey.
The random sample of 2500 sports fans, out of which 61% prefer basketball over soccer, therefore, we can write n=2500 and p=0.61. Thus, the margin of error can be written as,
Hence, the Margin of error in this survey is 1%.
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Answer:
The angles of the triangle are approximately 87.395º, 57.271º and 35.334º.
Step-by-step explanation:
From statement we know all sides of the triangle (,
,
), but all angles are unknown (
,
,
). (Please notice that angles with upper case letters represent the angle opposite to the side with the same letter but in lower case) From Geometry it is given that sum of internal angles of triangles equal 180º, we can obtain the missing information by using Law of Cosine twice and this property mentioned above.
If we know that ,
and
, then the missing angles are, respectively:
Angle A
(1)
Angle B
(2)
Angle C
The angles of the triangle are approximately 87.395º, 57.271º and 35.334º.