The ray of light, emitting from point M, reflects the line AB at point C ∈ AB and then goes through point N so that m∠ACM=m∠BCN. Prove that the bisector of the ∠MCN is perpendicular to line AB.

the balance is found at the link

step-by-step explanation:

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies