Waseem invests $100 every month for 15 years at an annual interest rate of 3.4% compounded monthly a) What is the value of Waseer's investment at the end of 15 years? (4 marks]

b) How much interest did they earn? [1 mark]

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The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25