The hip is a ball-and-socket joint. The socket is formed by the acetabulum, which is part of the large pelvis bone.The ball is the femoral head, which is the upper end of the femur (thighbone).he hip is a ball-and-socket joint. The socket is formed by the acetabulum, which is part of the large pelvis bone.
Most of us carry credit cards and ATM cards. These, typically, have sixteen digits on the front. These digits are the unique account number for the card. For obvious reasons, just any sixteen digits will not work, they follow pattern. The first few characters of the card number describe the type of card.
Best Answer: The first digit is always 3, 4, 5 or 6. Credit card companies use a standardized system of assigning numbers. 3 means it is an American Express or Diners Club credit card. Credit cards beginning with 4 means that it is a Visa card.If your credit card numbers starts with 5 it represents a MasterCard.And in the case of a credit card number beginning with 6, it is a Discover credit card.The other numbers are used to carry various other information.est Answer: The first digit is always 3, 4, 5 or 6. Credit card companies use a standardized system of assigning numbers. 3 means it is an American Express or Diners Club credit card. Credit cards beginning with 4 means that it is a Visa card.