Certifying Authority. A digital signature is an electronic form of a signature that can be used to authenticate the identity of the sender of a message or the signer of a document, and also ensure that the original content of the message or document that has been sent is unchanged.
Calculate the number of kilocalories from fat. (1 gram of fat = 9 kcal; 1 gram of carbohydrate or protein delivers 4 kcal.) Source(s): calculate number kilocalories fat: https://tr.im/12Lai.
A kilocalorie, or Kcal in abbreviated form, is a measurement of the amount of energy in the foods you eat. Low-energy foods have a relatively small amount of kilocalories, while high-energy foods have a lot of kilocalories.