Estimate to find each 23 is close to 25. 12 is close to = me to u

Solve the system of equations. y= 2x y= x^2 - 15

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.

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.