In checking the digital signature, the verifier . a. decrypts the digital signature it received with the supplicant public key to get the message digest b. hashes the plaintext message with the same algorithm used by the sender to get the message digest c. Both decrypts the digital signature it received with the supplicant public key to get the message digest and hashes the plaintext message with the same algorithm used by the sender to get the message digest d. Neither decrypts the digital signature it received with the supplicant's public key to get the message digest nor hashes the plaintext message with the same algorithm used by the sender to get the message digest

Howard is designing a chair swing ride. the swing ropes are 5 meters long, and in full swing they tilt in an angle of 29° outside chairs to be 2.75 m above the ground in full swing.

Which database model is best used for data warehouse and data mining

Write a grading program for a class with the following grading policies: a. there are two quizzes, each graded on the basis of 10 points. b. there is one midterm exam and one final exam, each graded on the basis of 100 points. c. the final exam counts for 50% of the grade, the midterm counts for 25%, and the two quizzes together count for a total of 25%. (do not forget to normalize the quiz scores. they should be converted to a percentage before they are averaged in.) any grade of 90 or more is an a, any grade of 80 or more (but less than 90) is a b, any grade of 70 or more (but less than 80) is a c, any grade of 60 or more (but less than 70) is a d, and any grade below 60 is an f. the program will read in the student’s scores and output the student’s record, which consists of two quiz and two exam scores as well as the student’s average numeric score for the entire course and final letter grade. define and use a structure for the student reco