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I'll assume that's
Please let me know if that's wrong.
These are two lines in point slope form. They'll meet at some x that makes the ys equal.
is the only solution.
Exactly one solution.
We really only had to ensure the lines had two different slopes. Then there's always exactly one solution.
If the lines had the same slope, they're either the same line (coincident) so an infinite number of solutions, all the points on that line, or they're parallel, no solutions.
Please let me know if that's wrong.
These are two lines in point slope form. They'll meet at some x that makes the ys equal.
Exactly one solution.
We really only had to ensure the lines had two different slopes. Then there's always exactly one solution.
If the lines had the same slope, they're either the same line (coincident) so an infinite number of solutions, all the points on that line, or they're parallel, no solutions.
The angle the beam makes with the pool surface is 29.72°.
Step-by-step explanation:
<u>Data:</u>
The spotlight and surface of a swimming pool makes a 90 degree angle.
Spotlight stand is 3m (Opposite)
Beam of light hits the water 7m away from the base of light (base)
Angle = ?
<u>Use sin to solve</u>
Formula:
Tan (Angle) =
Solution:
Sin (Angle) =
Angle = (0.571)
Angle = 29.72°
Therefore, the angle the beam makes with the pool surface is 29.72°.
Keyword: Angle
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