3. What are the points of figure K(1, 0), G(4,1), Z(3,-4) after a 90 degree counterclockwise rotation? *
O K(0,1), G(-1,4), Z(4, 3)
O K(0, 1), G(1,4), Z(-4, 3)
O K(-1,0), G(-4,-1), Z(-3, 4)
O K(0, -1), G(-1,-4), Z(-4,-3)

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Ответ:

samancolby873

24.01.2020

Mathematics

6m+7.5

Step-by-step explanation:

the arithmetic mean is the average of two numbers

it is given that a is average of 6m and 10

so $a=\frac{6m+10}{2}$

b is the average of 4m and 4

so $b=\frac{4m+4}{2}$

c is the average of 14m and 16

so $c=\frac{14m+16}{2}$

now the average of a ,b and c is given by

$average=\frac{a+b+c}{3}=\frac{\frac{6m+10}{2}+\frac{4m+4}{2}+\frac{14m+16}{2}}{3}=6m+7.5$

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3. What are the points of figure K(1, 0), G(4,1), Z(3,-4) after a 90 degree counterclockwise rotation? * O K(0,1), G(-1,4), Z(4, 3) O K(0, 1), G(1,4), Z(-4, 3) O K(-1,0), G(-4,-1), Z(-3, 4) O K(0, -1), G(-1,-4), Z(-4,-3)