Grade 11 Mathematics 2020 Paper 1

9.1 Two events A and B are such that: P(not A) = 0,45 P(B) = 0,3 P(A or B) = 0,685 Are events A and B independent? Justify your answer 9.2 A survey was done among a group of 75 learners to determine which sports theywatch on television. They chose from athletics (A), netball (N) … Read more

8.1 Calculate the effective interest rate per annum if an investment earns 9,5% interest perannum, compounded monthly. (3) 8.2 The value of a house increased to R764 050,60 over a period of 5 years due to inflation.The price of the house increased at a rate of 5% p.a. compounded annually.Calculate the original price of the … Read more

7.1.1 Write down the equation of asymptote of g. (1) 7.1.2 Write down the range of g. (1) 7.1.3 Determine the coordinates of the x and y-intercepts of g. (3) 7.1.4 Hence, write down the values of x for which g(x) < 0. (1) 7.2 Draw a neat sketch of the graph of h(x) = … Read more

Given: f(x) = -x2 + 6x + 7 5.1 Determine the coordinates of the turning point of f. (3) 5.2 Determine the x-intercepts of f. (2) 5.3 Draw a neat sketch of f, clearly indicating all intercepts with the axes and the turningpoint. (4) 5.4 Write down the equation of the axis of symmetry of … Read more

Given the quadratic pattern: -12; -8;0;12;… 4.1 Determine the next two terms of the pattern. (2) 4.2 Determine Tn , the general term of the pattern, in the form Tn = an2 + bn + c. (4) 4.3 Between which two consecutive terms does the first difference of 192 lie? (3) 4.4 A new pattern, … Read more