25x^2 - 30x + 9
= 25x^2 - 15x - 15x + 9
= 5x(5x - 3) - 3(5x - 3)
= (5x - 3)^2 Answer
Its the second choice
Answer:
9x4=36
Step-by-step explanation:
The line from (7, 1) to (-2 10) is a radius of the circle.
Its length is the square root of [ (-2 - 7)² + (10 - 1)² ] = √(81 + 81) = √162
The equation of the circle is: (x- 7)² + (y - 1)² = 162
Answer:
10%
Step-by-step explanation:
divide 90 into 81
so 81/90=.9
multiply that by 100 and you get 90 so 81 is 90% of 90 so it got marked down 10%
