Answer: D
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X: positive
Y: negative
Explanation:
It's either A or D and I chose A and got it wrong.
The answer is B frequency. When frequency increases more wave crests pass a fixed point each second. That means the wavelength shortens. So, as frequency increases, wavelength decreases
Answer:
First one is voltage
second is resistance
third is electric current
hope this helped!!
Exothermic is the answer to your question
