Area between two shapes. IXL Geometry help pls !

2461.76

Step-by-step explanation:

A=πr^2

First, find the area of the smaller circle.

A = (3.14)(21^2)

A = 1384.74

Next, find the area of the larger circle. Since it was stated that both circles have the same center, the radius would be 28.

A = (3.14)(28^2)

A = 2461.76

Now subtract the area of the smaller circle from the larger circle.

2461.76 - 1384.74 = 1077.02

Since 1077.02 is already rounded to the nearest hundredth, leave it as it is.

76%

step-by-step explanation:

24% are dogs and the remaining is 76% because 100-24=76

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)