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Year 8-9 Maths

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  1. Tom invests $135 at 8% per annum (p.a.), compounded semi-annually for 3 years.
    Find the total amount Tom will have after three years.
    Round to nearest hundredth. 

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  1. Find the surface area and volume of a cube with a side length of 12 cm.

S A = cm2 blank   Formula: SA= L2 ×6  

  = cm3  blank  Formula: V = L3

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  1. Find the next five terms of the sequences below...
a)   12, 24, 36, ..... , , , , blank
b)   2, 8, 32, ..... , , , , blank
c)   400, 200, 100, ..... , , , , blank
d)   64, 58, 52, 46, ..... , , , , blank
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 4.   Complete the table below. Round to the nearest hundred-thousandth if required.

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Substitute

x + 9

3 - x

2x - 3

x3

7 - 3x

x = 7 blank blank blank blank
x = -4 blank blank blank blank blank
x = -13 blank blank blank blank blank
x = 0.25 blank blank blank blank blank

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 5. An octagon, has a radius of 6 cm. Can you find the area of it?   Formula :   2 x r 2 x 1.4142135
Round up to the nearest hundredth.

cm blank

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  6. Type all prime numbers between 50 and 100.
Break each prime number up with a comma. 

blank

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  1. Susan wants to borrow $25,000 for five years. She visited four banks,  all four charge a different rate per annum.
a.   How much interest would be paid at Bank 1  at 11% p.a.? blank
b.   How much interest would be paid at Bank 2 at 12.5% p.a.? blank
c.   How much interest would be paid at Bank 3 at 12.75% p.a.? blank
d.   How much interest would be paid at Bank 4 at 13% p.a.? blank

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