3 years ago

This is an electrical device that changes the voltage of electricity through the use of two set of coils

Physics

2 answers:

mario62 [17]3 years ago

8 0

Answer:

The correct answer is a (TRANSFORMER). Trust me

Explanation:

Fynjy0 [20]3 years ago

3 0

Voltmeter is the right answer

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3 years ago

EXPERTS/ACE and people that wanna help 4 sure only!

mario62 [17]

That first one you have selected (3,-3) works in both equations so it's correct.
good job.

you can do this guess and test method with multiple choice answers. If it works in both equations it is the solution. Otherwise use substitution or elimination to combine the two into one equation in only one variable. Then you can solve for the one variable first and use it to solve for the other.

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