Higher Plus
15th February 1986
- 1Rearranging Harder Formulae3 marks
Make x the subject of 7x + 4 = y(x + 4).
- 2Velocity Time Graphs2 marks
On a velocity-time graph a car speeds up in a straight line from 0 m/s to 10 m/s over 20 seconds. Work out the acceleration.
- 3Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 3a + 4b and vector RS = 15a + 20b. What does this show about PQ and RS?
- 4Probability Equation Questions3 marks
The probability of winning a game is 1/2. A player expects 24 wins. How many games did they play?
- 5Histograms3 marks
A histogram has two bars: one 10 units wide with frequency density 2.5, one 5 units wide with density 0.8. How many values in total?
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