Let A = 13 64 Write 4A. Is det(4A) equal to 4det(A)? 4A = (Type an integer or decimal for each matrix element.)

How do I solve this problem?

Hello. Need help with 1 and 6

The domain of discourse for this problem is a group of three people who are working on a project. To make notation easier, the people are numbered 1, 2, 3. The predicate M(x, y) indicates whether x has sent an email to y, so M(2, 3) is read "Person 2 has sent an email to person 3." The table below shows the value of the predicate M(x, y) for each (x, y) pair. The truth value in row r and column y gives the truth value for M(x, y). M | 1 2 | 3 1 TTT 2 TFT 3 TT|F Determine if the quantified statement is true or false. Justify your an- swer. (a) Væ Vy (x # y) → M(x, y)) (b) Væ3y ¬M(x, y) (c) 3r Vy M(x, y)

Please assist with question 2 with details on how to do it. Thank you.

Would you please show me the break down? The answer was provided from the answer key in my book, but I need to understand how to get the answer.Remove the parentheses and simplify. 4(2x-y) + 4xy- 5(y-xy)- (2x- 4y) answer from answer key: 6x + 9xy - 5y

the answer choices for the last question are  0 1/2 1 1/4    theres no 3/5