At a zoo, the lion pen has a ring-shaped sidewalk around it. the outer edge of the sidewalk is a circle with a radius of 11m. the inner edge of the sidewalk is a circle with a radius of 9 m. (a) write and simplify an expression for the exact area of the sidewalk. (b) find the approximate area of the sidewalk. use 3.14 to approximate j, l

Diameter =2r6=2r r=3 for the radius of the flowerbedif we were to include the sidwalk around the bed the diameter would strechout another meter in both directions meaning adding 2meters to the diameter making the new diameter 6+2=8 and 8/2=4 so 4=radius of the circle including the sidewalk. find the area of the big circle and subtract the area of the smaller circle to find the area of the side walk.small circle= pi*3 squared 

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

when multiplying or dividing by a negative on both sides you have to flip the inequality sign. this rule only applies to multiplying or dividing by a negative number in inequality equations. this rule is really important.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice