Se considera piramida patrulatera regulata VABCD, iar M si N mijloacele muchiilor [VD] si [VB]. Stabiliti care este dreapta de intersectie a planelor : a) (VAC) si (ABD) b) (VAB) si (VDC) c) (AMN) si (VBD d) (AMB) si (CND). Coronita!

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

Find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?