2.
Find the area of circular room whose diameter is 14 cm. (it = 3.14)

Area of the circle with diameter 14cm is 154.35 cm squared.

Step-by-step explanation:

Since d=2r, we know that r=1/2D=7cm

We also know that the area of a circle can be found using the following equation: pir^2

We can plug in pi=3.14 and r=7 to get

area=(3.14)(7)^2=3.14*49=154.35cm^2

14 x 3.14

Step-by-step explanation:

Circumference is C = d x pi      Pi is equal to 3.14 and diameter is 14 so 3.14 x 14 is the answer. 43.96 to be exact.

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is