If the correlation between variables is .70, what percent of the variance is shared variance (coefficient of determination)

The expression 6x2 gives the surface area of a cube, and the expression x3 gives the volume of a cube, where x is the length of one side of the cube. find the surface area and the volume of a cube with a side length of 6m

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²