The diagram shows the position of three points, a, b and c, on a map. The bearing of b from a is 070°
Angle ABC is 50°
AB=CB
Work out the bearing of C from A

(3 marks) ​

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Two parallel lines are crossed by a transversal. what is the value of x? x = 40 x = 70 x = 110 x = 130

Find the arc length of the semicircle. 7the grade