Given the equation of the circle (x – 9)2 + y2 = 484, the center of the circle is located at and its radius has a length of units.

Which expression is equivalent to 2x^2+7x+4?

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?