The circle has radius 21 centimeters. What is its area?
22
Use
as an approximation for
7
A 132 cm
B 346,5 cm
C 1,386 cm
D 5,544 cm

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.

If 3x+8=3x+8 is it one solution or no solution