QUESTION 8:     The diagram shows two vertical pos…

QUESTION 8:     The diagram shows two vertical posts, AB and CD, on horizontal ground. The angle of elevation of C from B is 49º Calculate the length of BD. Give your answer to three Significant figures. (3)   RIGHT Click on the blue button to view the diagram      

QUESTION 11:   A diagram shows a straight line, , d…

QUESTION 11:   A diagram shows a straight line, , drawn on the grid below:   RIGHT Click on the blue button to view the grid     A straight line is parallel to the straight line and passes through the point (0; -5). Find an equation of the straight line . (3)

QUESTION 10:   A car completes a 200 km journey at an…

QUESTION 10:   A car completes a 200 km journey at an average speed of x km/h.  The car completes the return journey of 200 km at an average speed of km/h.   10.1) Show that the difference between the time taken for each of the two journeys is hours. (2) 10.2) Find the difference between the time taken for each of the two journeys when x = 80. Give your answer in minutes and seconds (3)