Which function is graphed below? f(x) = -cos(x)
f(x) = cos(x)
f(x) = sin(x)
f(x) = -sin(x)

Which function is graphed below?

f(x) = -cos(x)
f(x) = cos(x)
f(x) = sin(x)
f(x) = -sin(x)

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Ответ:

oliviac0327

07.07.2022

Mathematics

$x=5,\\AC=14$

Step-by-step explanation:

Since one triangle is inscribed in another, the two triangles are similar. As marked in the diagram, the sides of the larger triangle are exactly two times larger than the corresponding sides of the smaller triangle.

Therefore, we have:

$2(x+2)=4x-6,\\2x+4=4x-6,\\10=2x,\\x=\boxed{5}$

Since AC is marked by 4x-6 :

$AC=4(5)-6,\\AC=20-6,\\AC=\boxed{14}$

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Which function is graphed below? f(x) = -cos(x) f(x) = cos(x) f(x) = sin(x) f(x) = -sin(x)