Answer:
and 
Step-by-step explanation:
The ratios of sine and cos are defined as follows:
, and

The hypotenuse is always the side opposite of the 90 degree angle (for the given triangle, the hypotenuse is 85)
Since we are looking at the angle A, the opposite side with respect to A would be the side length of 84. That leaves the side 13 as the adjacent side.
Thus, we can now write:


The correct answer is the first answer choice.
The answer is A) 6:15, because if you divide both numbers by three, it'll give you 2:5
Answer:
A. 1÷(X+1) (x-2)
some steps are directly
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Answer:
2)27
Step-by-step explanation:
18+3(3+5x)=15x+____
18+9+15x is still the same as 15x+____
so 27+15x is =15x+27
hope I helped mark as brainliest answer
Answer:





Step-by-step explanation: the other angle is equal to his simmetrical, cause the triangle is isosceles, so is value is x. The sum of the angle in a triangle must be 180°