Show the set has cardinal number no by establishing a one-to-one correspondence between the set of counting numbers and the given set. be {19, 31, 43, 55, ( 1, 2, 3, 4, (19, 31, 43, 55,. (type the general term using n.)

1. 34

2. 268

3. x=14.4

step-by-step explanation:

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation:

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: