Answer:
x=-3
Step-by-step explanation:
Answer:
f(x)=
x-
Step-by-step explanation:
First put 7x-5y=6 into slope intercept form
y=
x-
Then put it into f(x) form
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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Answer:
The cost would be $81.09
Step-by-step explanation:
In order to find the amount Chris will spend, start with the equation and input 100 for every x that you see.
c=0.765x +0.06(.765x)
c=0.765(100) +0.06(.765[100])
c = 76.50 + 0.06*(76.50)
c = 76.50 + 4.59
c = 81.09