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ivann1987 [24]
3 years ago
9

Plsss.. hellpppp///

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
4 0

Answer:

  b. Always

Step-by-step explanation:

  (a -b)(a -b) is the product of the binomial (a -b) with itself, so it is a perfect square. The expanded version of this product is the "perfect square trinomial" ...

  a² -2ab +b²

This trinomial is <u>always</u> the product of (a -b)².

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Mr. Kohl has a breaker containing n milliliters of solution to distribute to the students in his chemistry class. If he gives ea
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Answer:

There were 26 students in his class and the teacher had 83 ml of the solution.

Step-by-step explanation:

Mr. Kohl has a "x" amount of solution, if he divides it by the number of students "n" he'll give each student 3 milliliters  and have a left over of 5 milliliters. If the amount of solution Mr. Kohl had was "x + 21" then he'd be able to give each student 4 milliliters of the solution. From these informations we have:

x = 3*n + 5

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Now that we have two equations and two variables we can solve the system of equations, as seen bellow:

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3 years ago
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