# Question: Use completing the square method to solve x2=2x-8=0 A man driving to work has to...

###### Question:

Question: Use completing the square method to solve x2=2x-8=0 A man driving to work has to pa...

1. Use completing the square method to solve x2=2x-8=0
2. A man driving to work has to pass through three sets of traffic lights and the probability that he will stop at any of the lights is 3/5. Draw a tree diagram to represent the above information and find the probability that he will stop at all three lights sets.
3. By the formula solve the quadratic equation   2x2 - 5x+5=0
4. The average rate of depreciation in value of a water pump is 8% per annum. After three years its value is Ksh. 140,700. Determine its value at the start of the three year period.
5. Find the sum of the first 9 terms of G.P 8+24+72+……
6. (a) Given the following arguments:

S1: All my tin objects        are saucepans

S2: I find all your presents very useful

S3: None of my saucepans is of the slightest use.

Represent the following in a Venn diagram

7. 6% of components produced by a machine are defective. If two components are chosen at random, determine the probability that:             (i)Both will be non-defective (ii) The first will be non-defective while the second will be defective.

8. Solve the following quadratic equation by factorization 2x2-3x+1=0

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