A manufacturer of a bird feeder cuts spaces from a tube that is 4 1/6 inches long. How many spacers can be cut from the tube if each spacer must be 5/6 inches thick?

Solve for x (x - 2)(x + 1) = 4

Notice that we cannot apply the zero product property...yet!

(x - 2)(x + 1) = 4 
x^2-x-2-4=0 
x^2-x-6=0 
(x-3)(x+2)=0 
x=3 or x=-2

1/4*2/3+2/5*11/3=

1/4*2/3+2/5*11/3=

1/6+22/15=

5/30+1 14/30=

1 19/30

1h=h what property is this in.

multiplicative property of 1 (identity)

use matrices to find the equation of a line with the following sets of points (4,1)(-2,-3)

One way is to use determinants: 

 

Using column 3 leads to: 
 

this leads to 

 

and finally 

 

:)

The sum of two numbers equals to the differece between the numbers plus 4.Find one of the numbers.

x+y=(x-y)+4 
2y=4
y=2

Solve: (x/a) - 2x = c

(x/a) - 2x = c 
x(1/a-2)=c 
x(1-2a)/a=c 
x=ca/(1-2a)