Question 1 Suppose A x i n R 2 x 5 and B ( 1 , 6 1 1 Draw A and B on two separate number lines 1 2 Find A B and give the answer in interval notation 1 3 Write A B as one set using set builder notation Question 2 Calculate 5 3 2 2 2 ( 4 9 4 ) without using a calculator Write the answer ( a ) as an improper fraction ( b ) as a mixed fraction ( c ) as a decimal fraction correct to two decimal places ( 1 ) 8 Question 3 ( a ) A certain bank offers an interest rate of 1 2 , 5 on a one year fixed deposit and the interest is compounded at the end of the year Suppose you invest p rands for one year, and at the end of the year the investment is worth R 9 0 0 0 Calculate p ( b ) Find the time ( in years ) that it will take an initial investment of R 2 2 5 0 to double in value at an interest rate of 8 , 7 5 per annum, if the interest is compounded quarterly ( Give the answer correct to two decimal places by using a calculator ) ( c ) In the year 2 0 0 0 the population of the world was 6 , 1 billion The doubling time of the world population is 2 0 years In which year will the world population reach 1 0 0 billion if it continues to grow at the same rate ( You will need to use a calculator ) 2 2

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Question 1 Suppose A     x i n R     2 x 5   and B   (   1 , 6     1   1 Draw A and B on two separate number lines  1   2 Find A B and give the answer in interval notation  1   3 Write A B as one set using set builder notation  Question 2 Calculate 5 3 2   2   2 (   4   9 4 ) without using a calculator  Write the answer  ( a ) as an improper fraction ( b ) as a mixed fraction ( c ) as a decimal fraction correct to two decimal places  ( 1 )   8   Question 3 ( a ) A certain bank offers an interest rate of 1 2 , 5   on a one   year fixed deposit and the interest is compounded at the end of the year  Suppose you invest p rands for one year, and at the end of the year the investment is worth R 9 0 0 0   Calculate p   ( b ) Find the time ( in years ) that it will take an initial investment of R 2 2 5 0 to double in value at an interest rate of 8 , 7 5   per annum, if the interest is compounded quarterly  ( Give the answer correct to two decimal places by using a calculator  ) ( c ) In the year 2 0 0 0 the population of the world was 6 , 1 billion  The doubling time of the world population is 2 0 years  In which year will the world population reach 1 0 0 billion if it continues to grow at the same rate  ( You will need to use a calculator  )   2 2

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Question 1 Suppose A = { x i n R : - 2 x 5 } and B = ( - 1 , 6 ]

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1 Understanding Responsive Design Principles

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