Answer:
6 mm
Step-by-step explanation:
So, the area he needs to fill isn't really important, you don't need to calculate it. What is necessary is the individual dimensions of that area (width/length). The width and the length must be divisible by the lengths of the tiles. This is so you don't need to cut anything. For example let's say the area needed to be filled was 15 mm (width) by 10 mm (length). If I chose 3mm square tiles, it could perfectly fill up the width, but when it came to the length there would be a small 1 mm gap. And you would need to cut one of the square tiles, so it would have a length of 1 mm. In this case the 15mm was divisible by 3, but the 10 mm wasn't. So using this logic, it can't be the 4 mm square tile since 150mm / 4 mm = 37.5. It can be the 6m since 150mm / 6mm = 25 and 180 mm / 6mm = 30. It can't be the 8 mm since 150 mm / 8mm = 18.75 mm
-2=3-7^5 radical x^2
-2=3-16807radical x^2
-2=3-16807 • IxI
Reduce the index of the radical and the exponent with 2
16807 x |x| - 2 = 3
Move to left side
16807 x |x| - 2 + 2 = 3 + 2
Add 2 to both sides
16807 x |x| = 5
|x| = 5/16807
Divide both sides by 16807
x= 5/16807
x= -5/-16807 (only use one negative)
Use the absolute value definition and rewrite the absolute value equation as two separate equations
X_1 = 5/16807
X_2 = -5/16807
“_” underscores are meant to be subscripts
C the finish line
Good luck and u can do thissss :)