A piece of wood is designed in the shape of a cone. A cylindrical hole of radius 4 cm and depth 2 cm has been drilled has been drilled into the base The surface area of the wood has to be painted, except for the area inside the hole

Work out surface area to be painted

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.