Answer:
The weight of pure gold in 258 g rams of 18- karat gold is 193.5 grams.
Step-by-step explanation:
The pure percentage in the gold = 75%
The weight of the gold purchased = 258 g
Now, here the pure gold percentage is 75% of 258 g
75% of 258 grams =
or,
⇒75% of 258 grams = 193.5 grams
Hence, the weight of pure gold in 258 g rams of 18- karat gold is 193.5 grams.
Answer:
y = (x + 1)(x - 0.586) ( x - 3.414)
Step-by-step explanation:
I sure wouldn't recommend doing this by trial and error.
I made a graph of which you can see. Every time this monster touches the x axis and speeds away upward is two equal roots of y. So the square root would be one of each of them.
y = (x + 1)^2 (x - 0.586)^2 (x - 3.414)^2
are the listed roots.
The square root is
y = (x + 1)(x - 0.586) ( x - 3.414)
Do I know that this is right? I don't. But I can tell you this: if you multiply 1^2 * (-0.586)^2 * (- 3.414)^2
you get 4 just as you should. Amazing that we have tools that do that sort of thing.
