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Harrizon [31]
3 years ago
10

The dot plots show the number of hours a lightbulb lasts from two different brands. Brand A. Number of hours per lightbulb 1000

4200 1400 1500 1800 2000 Brand B Number of hours per lightbulb .. 1200 1400 1600 1800 2000 Which of the following statements is correct? A. There were more lightbulbs in the dot plot for brand B than in the dot plot for brand A. B. The mean for brand A is the same as the mean for brand B. C. The mean for brand A is higher than the mean for brand B. D. The mean for brand B is higher than the mean for brand A.​
Mathematics
1 answer:
ANEK [815]3 years ago
4 0

Answer:

Step-by-step explanation:

The mean for brand A is higher than the mean for brand B

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Answer: Let's start by writing down coordinates of all points:

A(0,0,0)

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D(3,0,0)

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F(0,0,4)

G(0,5,4)

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a.) When we reflect over xz plane x and z coordinates stay same, y coordinate  changes to same numerical value but opposite sign. Moving front-back is moving over x-axis, moving left-right is moving over y-axis, moving up-down is moving over z-axis.

A(0,0,0)

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A(0,0,0)

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b.)

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A(-2,-3,1)

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Hope this helps plz mark brainliest

Step-by-step explanation:

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