Wednesday

January 28, 2015

January 28, 2015

Posted by **Matrix School 1** on Thursday, July 9, 2009 at 2:47pm.

Evaluate (3*2)*4

- Elementary Set Theory -
**bobpursley**, Thursday, July 9, 2009 at 2:54pmwell, 3*2= 15+6-24=-3 check that

then -3*4 must be =-15+12+48=45 check that.

- Elementary Set Theory -
**Marth**, Thursday, July 9, 2009 at 2:57pmEverywhere you see the * symbol, use the function 5x + 3y - 4xy, where x and y are the numbers to either side of the * symbol.

Order of operations still applies: start within the parentheses first.

3*2 = 5(3) + 3(2) - 4(3)(2)

3*2 = 15 + 6 - 24

3*2 = -3

Now you have (-3)*4

-3*4 = 5(-3) + 3(4) - 4(-3)(4)

-3*4 = -15 + 12 + 48

-3*4 = 45

So the answer is 45.

**Answer this Question**

**Related Questions**

Set Theory - 1)An operation* is defined by the relation x*y = 5x + 3y - 4xy ...

math - indicates required items An operation * is defined by the relation x*y = ...

Math - Let R1 be a binary relation on the set of integers defined as follows: R1...

math - If a * b is a binary operation defined as a + b / a , evaluate 2 * 4.

Discrete Math - a) Show that the relation R on Z x Z defined by (a , b) R (c, d...

math - Name: Barbara Dillon Date: July 18 2010 1. Divide 90÷18 =5 Answer is 5 2...

Set theory - consider the relation R=[(1,2),(2,5),(3.10),(4,17),(5,26)]. find ...

college implicit HELP! - I WANNA KNOW I'M DOING RIGHT. Find the slope of the ...

maths - explain why are the following not groups: 1)the set of Z integers with ...

Math - List the members of the equivalence relation on the set {1, 2, 3, 4} ...