2. 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 11 m. 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 π. SHOW YOUR WORK!!!

Mathematics, added 2020-09-17 20:04:41

Write the first five terms of a numerical pattern that begins with 2 and then add 3 ...

Mathematics, added 2020-09-17 18:39:02

Write the first five terms of a numerical pattern that begins with 2 and then add 3 ...

Mathematics, added 2020-09-16 23:03:41

In a pizza eating contest, Darren ate 1/3 of an 18-inch pizza in 5/6 of a minute. What would be his unit rate of pizzas per minute eaten? ...

Mathematics, added 2020-09-16 21:39:28

In a pizza eating contest, Darren ate 1/3 of an 18-inch pizza in 5/6 of a minute. What would be his unit rate of pizzas per minute eaten? ...

Mathematics, added 2020-09-16 20:22:45

A cylindrical water tank is 1.2 meters high and has a diameter of 4.6 meters. Approximately how much cubic meters of water will the container hold wh ...

Mathematics, added 2020-09-16 18:43:41

A cylindrical water tank is 1.2 meters high and has a diameter of 4.6 meters. Approximately how much cubic meters of water will the container hold wh ...

Mathematics, added 2020-09-16 05:28:06

Verify csc^4x-cot^4x=2csc^2x-1 ...

Mathematics, added 2020-09-16 04:02:24

Verify csc^4x-cot^4x=2csc^2x-1 ...

Mathematics, added 2020-09-15 21:16:55

Solve each graphing (find the point of intersection of the two lines) ...

Mathematics, added 2020-09-15 20:06:25

Solve each graphing (find the point of intersection of the two lines) ...

Mathematics, added 2020-09-15 18:21:40

A plane curve is defined by the following paramedic equation: x=2cos(t) y=sin(t) which of the following statements best describes the curve? A) the ...

Mathematics, added 2020-09-15 17:09:37

A plane curve is defined by the following paramedic equation: x=2cos(t) y=sin(t) which of the following statements best describes the curve? A) the ...

Mathematics, added 2020-09-14 07:56:55

A construction contractor received two deliveries of building supplies from a lumberyard. The two deliveries included 10 boxes of nails, which coast ...

Mathematics, added 2020-09-14 06:01:45

A construction contractor received two deliveries of building supplies from a lumberyard. The two deliveries included 10 boxes of nails, which coast ...

Mathematics, added 2020-09-14 01:03:25

1. AB is tangent to circle O at B. The diagram is not drawn to scale. . . circle O. . If AB = 9 and AO = 21.6, what is the length of the radius (r)? ...