50% A frustum is made by removing a small cone from
a similar large cone.
Vol of a cone =
1 arh
In the diagram shown, the height of the small cone
is a quarter of the height of the large cone.
Work out the volume of the frustum.
I
12 cm
6 cm

The graph of the quadratic function shown on the left is y = –0.7(x + 3)(x – 4). the roots, or zeros, of the function are . determine the solutions to the related equation 0 = –0.7(x + 3)(x – 4). the solutions to the equation are x =

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Ateacher noticed 5/8 of the students were wearing either blue shorts or white shorts. write two different ways this could be done.