Answer:
Option A is correct
Difference of squares identity should be used to prove 49-4 =45
Step-by-step explanation:
Prove that : 49 - 4 = 45
Polynomial identities are just equations that are true, but identities are particularly useful for showing the relationship between two apparently unrelated expressions.
Difference of the squares identity:
The answer is 3...........
The quotient of 3 by 1/ 6 and that of 3/4 by 1/ 8 is 1/2 and 4 respectively
<h3>How to find the quotient</h3>
From the given equation, we have to find
= 3/4 ÷ 1/8
First , we take the denominator of the second fraction to be the numerator, we have
=

Multiply through
=

=

To find the quotient of 3 by 1/6
=

=

=

Thus, the quotient of 3 by 1/ 6 and that of 3/4 by 1/ 8 is 1/2 and 4 respectively
Learn more about quotient here:
brainly.com/question/629998
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Answer:5.8
Step-by-step explanation:
Given
weight of chair with person on it =2118 N
Barber applies a force of 63 N
Using pascal's law
we know pressure around both sides is equal
i.e. 
pressure=
=
=
substituting values
=
=![\left [ \frac{2118}{63}\right ]^{0.5}](https://tex.z-dn.net/?f=%5Cleft%20%5B%20%5Cfrac%7B2118%7D%7B63%7D%5Cright%20%5D%5E%7B0.5%7D)
=5.798
Answer:
22/7×9×3=22×9×3=594÷7=84.85