What is the solution set for StartAbsoluteValue z + 4 EndAbsoluteValue greater-than 15? 11 less-than z less-than 19 Negative 19
2 answers:
Answer:
<h2>z less-than negative 19 or z greater-than 11 </h2>Step-by-step explanation:
Given the inequality , we are to find the solution set of the inequality. Since the the function is an absolute value, this means that the function will be positive and negative.
For the positive value of the function;
For the negative value of the function we have;
Multiplying both sides of the inequality by -1 will change the sense of the inequality sign;'
Hence the solution sets are OR z less-than negative 19 or z greater-than 11
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Just put the coefients in to a matrix
1x-6y-3z=4
-2x+0y-3z=-8
-2x+2y-3z=-14
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divde last row by 2
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multiply 2rd row by 6 and add to top one
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divide 2nd row by -3
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x=-2
y=-3
z=4
(x,y,z)
(-2,-3,4)
B is answer
1x-6y-3z=4
-2x+0y-3z=-8
-2x+2y-3z=-14
mulstiply 2nd row by -1 and add to 3rd
divde last row by 2
multiply 2rd row by 6 and add to top one
multiply 1st row by -1 and add to 2nd
divide 2nd row by -3
mulstiply 2nd row by -1 and add to 1st row
divide 1st row by -3
rerange
x=-2
y=-3
z=4
(x,y,z)
(-2,-3,4)
B is answer