Answer:

Step-by-step explanation:
we would like to solve the following equation:

notice that, the fraction can be reduced therefore reduce fraction:


by trigonometric value table we obtain:

get rid of sin:

and we are done!
Hey there :)
5 quarts of oil and an oil filter - $20.35
With couple - $4.43 less
Final cost?
We subtract 4.43 from $20.35
Why? That's the expected amount [ without a coupon ]
20.35
- 4.43
15.92
The final cost will be $15.92
Answer:
slope = - 
Step-by-step explanation:
Calculate the slope m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (- 9, - 4) and (x₂, y₂ ) = (- 3, - 6)
m =
=
= - 
Whole numbers because it includes the natural numbers plus zero