A certain circle can be represented by the following equation. x2 + 2x + y2 = 0
What is the center of this circle ?
What is the radius of this circle ?
units

Consider the function f(x)=−2/3x+5 . what is f(1/2) ? enter your answer, as a simplified fraction, in the box. f(1/2)=

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1