Daily Practice · Higher Plus

Daily Practice - Higher Plus

Grades 8-9 - exam-stretch algebra, geometry and reasoning.

29th September 2022

5 questions · 15 marks · Grades 8-9 · 51 question types in this band

1
Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 25, y = 20. Work out y when x = 81.
2
Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = a and vector OB = c. X is the point dividing AB in the ratio 2 : 1. Write vector OX in terms of a and c.
3
Probability Equation Questions3 marks
The probability of winning a game is 7/10. A player expects 35 wins. How many games did they play?
4
Histograms3 marks
A histogram has four 10-wide classes from 0, with frequency densities 1, 0.5, 2, 3. Which class contains the median?
5
Surds3 marks
Simplify sqrt(72) + sqrt(18), giving your answer in the form a sqrt(b).

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