Assignment Task :

1 i) For the arithmetic sequence below, determine the equation that describes the sequence and the values of d. State the missing terms of the sequence __, 0, -3, __, -9  

ii) A marble is rolling down an inclined ramp, picking up speed as it goes. 

The marble travels 2 cm in the first second, 5 cm in the 2nd-second, and 8 cm in the 3rd second and so on. 

A) How far does the marble travel in the 25th second?  

B) Determine the total distance that the marble travels in 25 seconds. 

2. For the arithmetic series, determine the value of n and the value of S nto the correct number of terms 

1 3. An excavating company has a digger that was purchased for $240 000. It is depreciating at 12% per year.

a) Determine the next three terms of this geometric sequence. 

b) Determine the general term (tn). Define your variables. 

c) How much will the digger be worth in 7 years? 

d) How long will it take before the equipment is worth less than $120 000? 

 

4. A company stores 9 kg of a radioactive material. After one year, 91% of the radioactive material remains. How much radioactive material will be left after 10 years? State your answer to the nearest tenth of a kilogram

 

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  • Posted on : December 31st, 2018

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