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zoebtharpe
07.09.2019 •
Mathematics
Pls asap!
in the equation 6x − 2 = −4x + 2, spencer claims that the first step is to add 4x to both sides. jeremiah claims that the first step is to subtract 6x from both sides. who is correct? explain.
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Ответ:
Step-by-step explanation:
either way works, but I would suggest adding 4x to each side so that the "x" value stays postive. Keeping the "x" positive when possible always helps me.
it becomes:
10x=4
x=4/10
x=2/5
Ответ:
sin x = opposite side / hypotenuse (the hypotenuse is the longest side ) so sin A in the given triangle = 5 / 13
cos x = adjacent side / hypotenuse. The adjacent side to angle A is AC so cos A = AC / 13
tan x = opposite side / adjacent side In the diagram tan A = 5 / AC
csc x = 1 / sin x = H / O ( H=hypotenuse and O = opposite) side
sec x = 1 / cos x = H/ A ( A = adjacent side)
cot x = 1 / tanx = A / O
In the triangle AC^2 = 13^2 - 5^2 = 144 so AC = 12 ( By Pythagoras)