Daily Practice · Higher
Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Capture Recapture2 marks
A capture-recapture estimate is made of the newt population of a stream. State one assumption the method relies on.
- 2Surds2 marks
Write sqrt(32) in the form a sqrt(b), where b is as small as possible.
- 3Expanding and Factorising Quadratics3 marks
Factorise x^2 - 8x + 15.
- 4Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 6, y = 42. Work out y when x = 9.
- 5The Sine Rule3 marks
In triangle ABC, angle A is 80°, angle B is 48° and side a is 20 cm. Use the sine rule to work out side b, to 1 decimal place.
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