Question 1 (4 points)

Mathematics

1 answer:

Dvinal [7]3 years ago

8 0

Answer:Mean = 8.7

Median= 8.8

Mode=Nil

Yes, they are the best measure to describe the data.

Step-by-step explanation:

Mean, otherwise known as average= total sum of data set/ number of data set

=45.8/5= 8.76

Median- the mid point data in a given set. We rearranged the data set in an ascending order to get the best measure. Median is 8.8

Mode- the most reoccurring number in a given data. For this data set, however, mode is not applicable as all each data value appears once

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aflati masurile a doua unghiuri complementare stiind ca masura unuia dintre ele este cu 18° mai mica decat triplul masurii celui

Ahat [919]

Answer:

The angle is "27 and 63".

Step-by-step explanation:

Let A and B are two angles, in which A is " $\frac{1}{2}$ " complementary angles and B be is another complementary angle.

Condition of complementary angle :

$A+B =90 ......(i)$

Solution:

$\ A = \ 3B - 18 \\\\ \ put \ the \ value \ of \ A \ in \ equation.....(i) \\\\ \ Equation: \\ \\\Rightarrow \ A\ +\ B \ =\ 90 \\\\\Rightarrow \ 3B\ -\ 18 \ + \ B \ = \ 90 \\\\\Rightarrow \ 4B \ = \ 90 +18 \\\\\Rightarrow \ 4B = 108 \\\\ \Rightarrow B = \frac{108}{4} \\\\ \Rightarrow B \ = \ 27\\$

$\ put \ the \ value \ of \ B \ in \ equation (i).\\\\ \ Equation: \\\\\Rightarrow A+B=90\\\\\Rightarrow A+27=90\\\\\Rightarrow A=90-27\\\\\Rightarrow A= 63$