Hello! I need help with my math homework. Will someone tell me help me? “ You have 6 donuts and you want to give 2/3 of them to
a friend a give keep the rest for yourself. How many donuts would your friend get?(ignore the picture it was an accident :/ )
2 answers:
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Answer:
i (or no solution if you haven't learned about imaginary numbers yet)
Step-by-step explanation:
The first thing you want to do is isolate x, or get x alone.
7x²+46=32
=> 7x²+46-46=32-46
=>7x²=-14
=>7x²÷7=-14÷7
=>x²=-2
If you have learned about imaginary numbers read on. If not, you have to realize that squaring any number can't result in a negative number. This means that there is no solution.
If you have learned about imaginary numbers, read on.
Now that you have x^2=-2, you can take the square root of both sides.
x=
Using a property about square roots (I don't know what it's called)
the equation becomes:
x=
And since =i, you can substitute in this value in to get x=i
.
