•a number is more than 11 units from 8.

17 < x ,  x∈ (-∞, x)

Step-by-step explanation:

The questions ask us to transform common language, to mathematical language and then solve an inequetion. a number (x) is more than 11 units from 8 means:

8 + 11 < x

17 < x

x∈ (-∞, x)

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

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