BNU1501 Exam Revision Pack

MODULE : BNU1501

,BNU1501 Exam
Pack
Contains:

• Exam Questions & Solutions
• (Jun 2015, Nov 2018 & Nov 2019)
• (Jun 2016, Nov 2014 & Nov 2016)
• Exam Papers Included

,SOLUTIONS FOR BNU 1501 EXAMINATION QUESTION PAPER
OCTOBER/NOVEMBER 2014


1. 𝑎3 − 2𝑏𝑎2 + 10𝑏2 𝑎 − 5𝑎2 𝑏 + 14𝑏3 − 7𝑎𝑏2

𝑎3 − 2𝑎2 𝑏 − 5𝑎2 𝑏 − 7𝑎𝑏2 + 10𝑎𝑏2 + 14𝑏3

𝑎3 − 7𝑎2 𝑏 + 3𝑎𝑏2 + 14𝑏3 Option [3]



2. 30𝑥𝑦 − (15𝑥 2 𝑦 3 𝑋 2𝑦 0 )

30𝑥𝑦 − 30𝑥 2 𝑦 3 Option [5]



3. 30𝑥 4 𝑦 3 − 15𝑥 2 𝑦 3 𝑋 2𝑦 3

30𝑥 4 𝑦 3 − 30𝑥 2 𝑦 6 Option [5]



4. 2𝑥 − 3 = 3 − 𝑥

2𝑥 + 𝑥 = 3 + 3

3𝑥 = 6

𝑥=2 Option [3]



5. 2(2𝑥 − 1) = 𝑥 + 1

4𝑥 − 2 = 𝑥 + 1

4𝑥 − 𝑥 = 1 + 2

3𝑥 = 3



1 www.noteswarehouse.co.za

, 3𝑥 3
=3
3


𝑥=1 Option [4]



6. 5(𝑥 − 3) Option [2]



7. 𝐷𝑖𝑠𝑡𝑎𝑛𝑐𝑒 = 𝑆𝑝𝑒𝑒𝑑 𝑋 𝑇𝑖𝑚𝑒

270
𝑑= 𝑋𝑥 Option [1]
𝑝




1 1
8. 𝐶 = 10 + 10 + (2 𝑋 2𝜋 𝑋 5) + 10 + 10 + (2 𝑋 2𝜋 𝑋 5)

𝐶 = 20 + 15.70796327 + 20 + 15.70796327

𝐶 = 71.41592654𝑐𝑚 𝑏𝑢𝑡 100𝑐𝑚 = 1𝑚

71.41592654
𝐶= 100


𝐶 = 0.71𝑚 Option [1]


1
9. 𝑇𝑜𝑡𝑎𝑙 𝑎𝑟𝑒𝑎 𝑜𝑓 𝑡𝑤𝑜 𝑡𝑟𝑖𝑎𝑛𝑔𝑙𝑒𝑠 = 2 𝑋 𝑋 16 𝑋 6 = 96𝑐𝑚2
2

1
𝑇𝑜𝑡𝑎𝑙 𝑎𝑟𝑒𝑎 𝑜𝑓 𝑡𝑤𝑜 ℎ𝑎𝑙𝑓 𝑐𝑖𝑟𝑐𝑙𝑒𝑠 = 2 𝑋 2 𝑋 𝜋 𝑋 5 𝑋 5 = 78.54𝑐𝑚2

𝐴𝑟𝑒𝑎 𝑜𝑓 𝑎 𝑟𝑒𝑐𝑡𝑎𝑛𝑔𝑙𝑒 = 16 𝑋 10 = 160 𝑐𝑚2

𝑇𝑜𝑡𝑎𝑙 𝑎𝑟𝑒𝑎 = 96 + 78.54 + 160 = 334.54𝑐𝑚2 Option [4]




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