Three ice cream stores sold cones, sundaes, and milkshakes in the quantities and prices given in the tables. Find matrices Q and P that represent the quantities and prices respectively. Quantities Sundaes Q= P = E 1 Store 1 Store 2 Store 3 QP = Find the product QP. E - Cones Cones $2.00 Sundaes $2.25 Shakes $4.00 Interpret the results. amount made by store 1 amount made by store 2 amount made by store 3 75 82 64 Unit Price $ $ $ 75 69 40 Shakes 36 25 30

Fill in the missing entries of the matrix, assuming that the equation holds for all values of the variables. ? ? ? ? ? ? ? ? ? X1 x3 Fill in the missing entries of the matrix below. 3x₁ - 2x2 8x₁ - 6x3 - 4x2 + 5x3 X₁ X2 3x₁ - 2x₂ 8x1 - 6x3 - 4x2 + 5x3 x3

Given three matrices, find the sum

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