An integer divided by its opposite always equals -1: this is false. Any number which is not 0 divided by it's opposite is in fact equal to -1, but since 0 is also an integer, it's false. You are right, good job!
√(12/27)
= √(4 * 3) / √(9 * 3)
= 2√3 / 3√3
= 2/3
A. 1) y ≤ x - 3
refer to the attachment
B. 2) y+2x>5
Both diameter and height are scaled by 2.5.
Area is measured in squared units ( square centimetres).
Square the scale factor:
2.5^2 = 6.25
Multiply the area of the smaller vase by the scale:
2826 x 6.25 = 17,662.5 square cm.