Imagine the expression as a polynomial:

a) (5x – y)² = 25
b) (0,3x+4)²
c) (7 – xy)²
d) (0,6x - y²)²
e) (2x²+b4^4)²

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3