Express 3 + 12x – 2x2 in the form a – b ( x + c)2, where a, b and c are integers to be found. Hence, sketch the graph of y = 3 + 12x – 2x2, showing the
coordinates of any point at which the graph crosses the coordinate axis

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=

The area of a circle is equal to 1 dm². find the radius of the circle.