Select the exclusion that fits best with this problem.
Please help.
Will mark brainliest

Well, Your best choice answers is x, y, = 0. Because, For this case we have the following expression:

 3x ^ 2y ^ 2-6xz / 6x ^ 2yz

 From here, we must exclude all values that make the denominator equal to zero.

 We have then:

 6x ^ 2yz = 0

 Therefore, the results are:

 x = 0

 y = 0

 z = 0

So, The best choice answer will be is x, y, z = 0. Good Luck!

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.