Based on the figure below, the ratio of x/y is equivalent to which trigonometric function?
a
cos a

b
sin b

c
sec a

d
tan b

OPTION D.

Step-by-step explanation:

For this exercise it is important to remember the following Trigonometric  Functions:

Knowing this, we can identify that:

Therefore, the ratio is equivalent to this Trignometric function:

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3