How much power does a hair dryer require to transform 198 000 J of energy in 15 mins?
1 answer:
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Answer:
y becomes doubled.
Explanation:
If;
y =
what is the state of y when x is halved;
the given expression is an inverse relationship. When y increases, x is supposed to decrease and vice versa.
if x is halved; x =
=
Now compare :
:
we see that y becomes doubled