the answer is the second graph (b) ^^
Answer: X =5/2, 15/2 x=2.5, 7.5
Step-by-step explanation:
4.2 would be an example, but there are many more. Honestly, it wouldn't matter as long as it was less than 6.73.
Answer: y=-3-1/2x
i hope this helps good luck
The value of cos A is √(1 + x²)/ (1 - x²) /√1 + x
<h3>Trigonometric ratios</h3>
It is important to note that
sin A = opposite/ hypotenuse
cos A = adjacent/ hypotenuse
Then,
opposite = 
Hypotenuse = 
Let's find the adjacent side using the Pythagorean theroem



cos A = x/hypotenuse

cos A = √(1 + x²)/ (1 - x²) /√1 + x
Thus, the value of cos A is √(1 + x²)/ (1 - x²) /√1 + x
Learn more about trigonometric identities here:
brainly.com/question/7331447
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