What is most likely true about the population of 250 grandparents
2 answers:
Answer: More grandparents prefer using hard copy rather than a digital copy.
Step-by-step explanation:
Given: The total number of grandparents surveyed = 250
which is 10 times n where n is the sample size = 25
i.e. we need to multiply 10 to each number given in picture.
Therefore, the number of grandparents surveyed prefer digital copy =
The number of grandparents surveyed prefer digital copy =
Clearly 210>40
Therefore, More grandparents prefer using hard copy rather than a digital copy.
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Answer:
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Hi there!
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I believe your answer is:
(-3, -1) and (1, 3)
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Here’s why:
- I have graphed the two equations given on a graphing program.
- When graphed, they pass at points (-3, -1) and (1,3). Therefore, they are the solutions to the system.
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See the graph attached.
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Hope this helps you. I apologize if it’s incorrect.
In the half-angle formula for sine and cosine, notice that a plus/minus sign appears in front of each radical (square root). Whether your answer is positive or negative depends on which quadrant the new angle (the half angle) is in
