Answer:
Step-by-step explanation:
Remark
Normally you would have to make sure that the bottoms of each fraction to be added would be the same. In this question, they are, so nothing further to getting the bottoms the same has to be done,
Solution
answer = 7 / 16 + 3 / 16
answer = (7 + 3) / 16
answer = 10/16
Both top and bottom are even numbers so you can divide both top and bottom by at least 2.
10/2 = 5
16 / 2 = 8
So answer = 5/8
1. b=-4
(x+1)(x-4)
2. b=2
(x-1)(x-2)
3. b=-18
(x+3)(x-6)
4. b=-10
(x+2)(x-5)
Answer:
x=9, y =-8-z, w =1, z=z
Step-by-step explanation:
Given that the augmented matrix in row-reduced form below is equivalent to the augmented matrix of a system of linear equations.
[ 1 0 0 0 | -9 ]
[ 0 1 1 0 | -8 ]
[ 0 0 0 1 | 1 ]
We find that this is a rectangular matrix 3 rows and 4 columns
i.e. the variarables are four but independent equations are only 3.
so only parametric equations can be found out
First row gives x = -9
Last row gives w = 1
II row gives y+z =-8 and we do not have any other equation in y or z
Hence we have solutoin as
z =z and y -8-z
The solution set is
x=9, y =-8-z, w =1, z=z