Question

1) a) From the set {-8, -2/3, 5i, √(-9), √2, 0, 3+3i, -2.35, 7}

i) List the set of Natural Numbers
ii) List the set of Integers
iii) List of the set of Rational Numbers
vi) List the set of Real Numbers

2)Solve the following pairs of simultaneous equations 3x + y = 7 and 2x - 2y = 2

b) i) -30 ÷ -6 - (-12 + 8) – 4 x 3 =

c)Calculate the simple interest earned if a deposit of $ 900,000 is left for 12 years at an interest rate of 3% .

ii) Calculate the interest rate for a 12 years investment of $600,000 to gained $180,000 interest.

Answer 1