Answer:
Noor was right because the answer is 324
Step-by-step explanation:
the BODMA rule of solving the expression the bracket first before applying the index or before multiplying.
The correct way of solving the expression is
18 x 4x 4 + (9-3)(9-3)
= 18×16 + 6×6
= 288 + 36
= 324
But
Roopa solved it this way instead
18 x 4x 4 + (9×9-3×3)
= 18×16 + (81-9)
= 288 + 72
= 360
So, Noor was right while Roopa was wrong
If you can rewrite the formula as (x-a)² + (y-b)² = r², the center is at (a,b) and the radius is r.
If you work out this equation, and map it to the original, you will find that the +4x term hints that a = 2 (double product) and -12y hints that b=-6, and r=6.
So, the formula can be written as (x+2)² + (y-6)² = 6² and the center is at (-2,6) and the radius is 6.
B. parallelogram , rhombus , and rectangle
