If 2x2 + y2 = −2 then evaluate the second derivative of y with respect to x when x = 2 and y = 3. round your answer to 2 decimal places. use the hyphen symbol, -, for negative values.

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.