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Ratling [72]
3 years ago
11

A greenhouse owner wants to test the effectiveness of a new fertilizer on African violets. She has 60 violet seedlings that were

grown for 8 weeks. She wants to test the new fertilizer on 10 of the plants, and decides to use a random number table to select a simple random sample. Which of the following correctly labels the population of violets?
Mathematics
2 answers:
fredd [130]3 years ago
6 0

Answer:

She needs to number each plant 1–60 and randomly select 10 plants

Step-by-step explanation:

Zepler [3.9K]3 years ago
4 0

Answer:

a is right on edge

Step-by-step explanation:

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If we get 20% off, we still have to pay 100-20 =80%

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A radio transmission tower is 170 feet tall. how long should a guy wire be if it is attached 15 feet from the top and is to make
beks73 [17]
The image of the given scenario is attached below.

A right angled triangle is formed, with one angle equal to 27 degrees. The perpendicular side is 155 and we are to find the length of guy wire which makes the hypotenuse of the right angled triangle.

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sin(27)= \frac{155}{x}  \\  \\ &#10;x= \frac{155}{sin(27)} \\  \\ &#10;x=341

Rounding to nearest whole number, the length of the guy wire that must be attached is 341 feet. 

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