Find the area of circle

78.50 in^2

Step-by-step explanation:

The formula for the area of a circle is

A = pi r^2 where r is the radius. You were given the diameter so cut it in half to

find the radius. Just plug it in and solve

A = (3.14)(5)^2

= (3.14)(25)

= 78.50

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right