amselah4955
03.01.2021 •
Engineering
7. Which of the following is a disadvantage of an electromagnet?
You can turn an electromagnet off and on.
Electromagnets are stronger than permanent magnets.
Electromagnets require power to operate.
It is easier to increase the strength of electromagnets.
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Ответ:
I think
electromagnets require power to operate
Ответ:
The independent variable is m (number of miles) and the dependent variable is e (the cost).
Step-by-step explanation:
In this situation, if you were to graph the equation on the number line ,
M will be the x and e will be the y.And we know most of the time that x is independent in that situations and y is dependent.
The cost of depends on how many miles travelled.If the cost will go up it depends on how many miles.