John connected 3 resistors in series. The equivalent resistance or series resistors is
1 answer:
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By subtracting the given addend to the sum, we see that the other addend is:
<h3>How to get the other addend?</h3>
We know that the sum of two polynomials is:
One of the addends is:
To get the other addend, we can subtract the given addend to the sum:
Then we can conclude that the other addend is:
If you want to learn more about polynomials:
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Answer:
x ≈ 2.76
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan78° = =
=
( multiply both sides by x )
x × tan78° = 13 ( divide both sides by tan78° )
x = ≈ 2.76 ( to 2 dec. places )