The pattern is you add 2 for each number... That's A :)
Rational Numbers are the numbers which doesn't repeat, with perfect squares( specially for this case)
Among the options, only 4 is the perfect square here. As √4 = 2
In short, Your Answer would be: Option C) √4
Hope this helps!
Answer: -4x^3 y^10
-2x^3 • 2 = 4 (because 2•2 is 4, they don’t share the same variable so you just multiply the base)
y^9 • y^1 (9+1=10)
-4x^3 y^10
Equilateral triangle means all sides have equal length.
Perimeter
As a sum: (x-4.5)+(x-4.5)+(x-4.5)
As a product: 3 * (x-4.5)
They are equivalent because 3 times a number is just the sum of three of the number.