The perimeter of a square is at least 20 centimeters more than the length of a side. Express the statement as an inequality, and solve for the possible length of a side.

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e. g. 98.765).

Enter the number of complex zeros for the polynomial function in the box. f(x) = x+ + 5x² +6

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 8 = -6x a. –7.12, 1.12 b. 7.12, –1.12 c. 7.12, 1.12 d. –7.12, –1.12