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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= 
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← cancel common factor (y - 1) on numerator/denominator
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Answer:
Does the answer help you?
Answer:
100
Step-by-step explanation:
(0.8)(1,000)/(40,000)(0.0002)
800/8
100
That depends on the position of the angle, if it's a central angle then the length of arc = 1/4 the circumference
so L = (1/4)(2pi(70))= 110 feet approximately
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4z+6.1≥43.7-4z
add 4z on both sides - 8z+6.1≥43.7
subtract 6.1 on both sides - 8z≥37.6
divide by 8 on both sides - v≥4.7
