Liam is setting up folding chairs for a meeting. if he arrange the chairs in seven rows of the same length he has five chairs le
ft over. if you arrange the chairs in five rows of the same length he has 15 left over. how many chairs does Liam have?
1 answer:
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Answer: ( - / 3)
Step-by-step explanation:
sin(angle) = opposite/hypotenuse
opposite =2
hypotenuse = 3
solve for adjacent side with pythagorean theorum
opposite^2 + adjacent^2 = hypotenuse^2
2^2 + adjacent^2 = 3^2
4 + adjacent^2 = 9
adjacent^2 = 9 - 4
adjacent^2 = 5
adjacent =
- since it is in the second quadrant
cosx = (adjacent/hypotenuse)
cosx = (-/3)
(-/3)