You find a strong negative correlation between two variables z and c. Does this necessarily imply that there is a causal relationship between the variables? Yes/No

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

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle