10×10×10×10×10×10×10 with an exponent exponent how you decided what exponent to write

What is the standard form of -5x^2+2x^4-11+x^3+3x

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.