Answer:
Two systems of equations are equivalent if they have the same solution(s).
Answer:
Our eyes are sensitive to all electromagnet waves with a wavelength longer than infrared
Step-by-step explanation:
I hope this helps :) good luck!
Yes it is equivalent because you need to isolate the y so divide by 5 on both sides and 23 divided by 5 is 4.6
Answer:

Step-by-step explanation:
The trigonometric identity is :

We need to express secθ in terms of tanθ.
The above equation becomes,

Hence, this is the required solution.