What is the length of a diagonal of a cube with a side length of 8 inches? Length of a diagonal of the face:

8 squared + 8 squared = c squared. 64 + 64 = c squared. 128 = c squared. StartRoot 128 EndRoot = c squared.

Use the diagonal of the face of the cube and the side length of the cube to find the length of the diagonal of the cube. Round to the nearest tenth of an inch.

The diagonal through the interior of the cube is about
inches.

7x+8y=-18, 4x-9y=-3 solve the system of equations

To find the extreme values of a function f(x. y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x, y)=xy

Can someone me with the property questions for 12 13 and 14 plz