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.
Multiply the fat grams by nine. Every gram of fat contains nine calories. To figure out how many calories there are in the fat content, simply multiple the fat grams by nine. For example, if there are ten grams of fat, you would multiple ten grams of fat by nine calories, for a total of 90 calories.