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eimsori [14]
3 years ago
5

Algebra question on matrices. Please help!! Solve the system of equations below using matrices.

Mathematics
1 answer:
Allushta [10]3 years ago
4 0

Answer:

(16,-6) is the answer

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Factor completely<br> x^4 -81
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4 years ago
The dot plots show the heights of boys and girls at a summer camp.
joja [24]

Answer:

First choice:

  • <em><u>Most of the data in each plot are greater than 48.</u></em>

Explanation:

1. Boy's Heights.

Using the information you can create a frequency table:

Heigth    Frequency

40                   0

41                     1

44                    3

46                    3

48                    2

50                    3

52                    4

54                    4

56                    0

58                    0

60                    0

                   ======

                      20 boys

2. Girl's Heights.

Similarly, create your frequency table:

Height        Frequency

40                      0

41                       0

42                      0

44                      2

46                      3

48                       1

50                      3

52                       4

54                       3

56                       4

58                       0

60                       0

                      ======

                        20 girls

<em>Which is a true statement for most of the data in each plot?</em>

<u><em>Most of the data in each plot are greater than 48.</em></u>

  • Count the dots or add the frequencies from the tables.

  • For boys, the frequency of points greater than 48 is: 3 + 4 + 4 = 11 which is more than half (there are 20 dots).

  • For girls, the frequency of points greater than 48 is: 3 + 4 + 3 + 4 = 14, which is also more than half.

Hence, it is correct that most fo the data in each plot are greater than 48.

5 0
4 years ago
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How do I solve this !! HELP
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