Use the image below to answer the following question: A right triangle is shown. The two angles that are not 90 degrees are marked x and y. The leg across from angle y measuring 3, another leg across from angle x measuring 4, and the hypotenuse measuring 5.
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What relationship do the ratios of sin x° and cos y° share?

The ratios are opposites. (4 over 5 and negative 4 over 5)
The ratios are both negative. (negative 4 over 5 and negative 4 over 5)
The ratios are both identical. (4 over 5 and 4 over 5)
The ratios are reciprocals. (4 over 5 and 5 over 4)

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The special properties of both of these special right triangles are a result of the ... If you know the hypotenuse of a 45-45-90 triangle the other sides are root 2 ... In 45-45-90 triangles, the two legs (the sides that make up the right angle) are equivalent. ... that x, the smallest value, is always across from the 30-degree mark

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct