Answer:
9, 16, 169, and 625 are perfect squares.
Step-by-step explanation:
3²=9 4²=16 13²=169 25²=625
Let
Find the equation in terms of y in the form x = f(y).
Replace y by x in the right hand side, which will be the required inverse of the function.
The answer is 26, because the greatest the side of a triangle can be is the sum of the two lengths. (12+14=26)
Well 12 = 3×4 thus answer would be -3 and -4
For algebra solution, we can let smallest integer be n then that would be n(n+1) = 12, so we can go ahead and solve for n:
n(n+1) = 12
n² + n - 12 = 0
(n-3)(n+4) = 0
n = 3 or -4
Since we need negative integers, n would be -4 and then next integer (n+1) would be -3.
Hope this helps.
Intersection means elements both have. Both sets have -1 but they have nothing else in common so the intersection is {-1}
Union means combining the sets so {-1, 1, 2, 3, 7} Note that I only wrote 1 twice. No duplicates allowed!
