ABCDEFGH is a cuboid. D
+
C
(В
8 cm
(6 cm
17 cm
The cuboid has
length 17 cm
width 5 cm
height 8 cm
Work out the size of the angle that AH makes with the plane EFGH.
Give your answer correct to 1 decimal place.​

Plzzz plzz maths ! quadratic sequences =an^2+bn 1) 1,6,15,28,45 2)5,18,39,68,105 3) 1,8,21,40,65 4) 7,24,51,88,135 5) -1,2,9,20,35

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Average acceleration: i have no idea how to do this.