Find the inverse, if it exists, for the given matrix. -2 -4 -8 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The inverse matrix is. (Simplify your answer.) O B. There is no inverse matrix.

Encode the message Math is good. Break the message into groups of two letters and use the matrix M = How can the message be encoded? OA Translate each group into a sequence of integer pairs and add each to the identity matrix 0. Translate each group into a sequence of integer pairs and multiply each by M OC. Translate each group into a sequence of integer pairs and subtract each from the identity matrix D. Translate each group into a sequence of integer pairs and multiply each by M Encode the message. Give your answers as column matrices, where each matrix contains a pair of encoded letters. Give the matrices in the order they were encoded, which should correspond to the order of the original message 119 888888 (Type an integer or simplified fraction for each matrix element.) 29 15

Determine whether the following statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement. 1 A matrix row operation such as -R, +R, is not permitted because of the negative fraction. Choose the correct answer below. O A. The statement is true. O B. The statement is false. A true statement is "A matrix row operation such as - R. +R, is permitted regardless of the negative fraction." 8 O C. The statement is false. A true statement is "A matrix row operation such as --R, + R, is not permitted because of the fraction 1 O D. The statement is false. A true statement is "A matrix row operation such as -R, +R, is not permitted because of the-positive fraction."

Determine whether the statement below is true or false. Justify the answer. A5x6 matrix has six rows. Choose the correct answer below. A. The statement is true. A 5x6 matrix has six columns and six rows. B. The statement is false. A 5x6 matrix has five rows and six columns. C. The statement is true. A 5x6 matrix has five columns and six rows. D. The statement is false. A 5x6 matrix has five rows and five columns.