Find the H.C.F of the following expressions.
1 answer:
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Answer:
a)
b) 54
Step-by-step explanation:
a)
If one quantity, A, is jointly proportional to other 2 quantities (B & C), we can write proportionality equation as:
Where
k is the proportionality constant
Now, for this problem, P is jointly proportional to A and CUBE OF V, so we can write:
b)
Now velocity, V, is triples, which means it becomes 3V
Also, cross sectional area, A, is doubled, which means it becomes 2A
Let's put these into formula and see the difference:
So, power is multiplied by a factor of 54. Power becomes 54 times if Area is doubled and velocity is tripled ( as seen ).
To solve, lets convert the number so that they both have the similar exponents.
in comparing 20,000*10^-28 and 9*10^-28, we can see that one is nearly 2,000 times bigger than the other
20,000/9=2222
Answer= C
in comparing 20,000*10^-28 and 9*10^-28, we can see that one is nearly 2,000 times bigger than the other
20,000/9=2222
Answer= C