Answer:
Step-by-step explanation:
Factorise the denominator of the second fraction
y² - 1 = (y - 1)(y + 1) ← difference of squares
To obtain a common denominator
multiply numerator/ denominator of first fraction by (y + 1)
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← subtract numerators leaving the common denominator
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= 
= 
← cancel common factor (y - 1) on numerator/denominator
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Answer:
C symmetric property
Step-by-step explanation:
hope this helps
40% of 280 is 112 so to increase by 25% it must increase by 28
Just scan it, there’s an answer for it already I’m pretty sure
Answer: True
The ratio is equivalent to
1 kg = 1000 g
