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Drupady [299]
3 years ago
13

The drama club members at Millie’s middle school are selling tickets to the school play. Millie wants to determine the average n

umber of tickets sold. First, she surveyed the club members in her homeroom, and then she surveyed every third member of the club in her physical education class. Which sampling technique should produce a more representative sample? PLZ ANS FAST
Mathematics
1 answer:
Ivanshal [37]3 years ago
7 0

Answer:

A random sampling technique should be used

Step-by-step explanation:

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Lena [83]
25x+20y=455
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6 0
3 years ago
Angles α and β are the two acute angles in a right triangle. Use the relationship between sine and cosine to find the value of β
Dimas [21]

Answer:

From given relation the value of β is 37.5°

Step-by-step explanation:

Given as :

α and β are two acute angles of right triangle

Acute angle have measure less than 90°

Now given as :

sin(\frac{x}{2} + 2x) = cos(2x +\frac{3x}{2})

Or, cos(90° - (\frac{x}{2}+2x)) =  cos(2x +\frac{3x}{2})

SO, (90° - (\frac{x}{2}+2x)) = 2x+\frac{3x}{2}

Or, 90° =  2x+\frac{3x}{2} + \frac{x}{2}+2x

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So, x =  \frac{90}{6} = 15°

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∵ β   α

So, As 37.5°52.5°

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3 years ago
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