The domain is all of the x values which are the first number in each set of parentheses and the range is all of the y values therefore domain = {2, 1, 5, 3} and range= {2, -7, 3, 0}
The answer is C, 238.125km
To solve this, we'll use the trigonometric function called cosine.
The cosine of an angle -in a right triangle-, is equal to the side adjacent to the angle over the hypotenuse of the triangle.
Given the angle 41, its adjacent side is
![x](https://tex.z-dn.net/?f=x)
and the hypotenuse is 55, so:
![cos(41)= \frac{x}{55}](https://tex.z-dn.net/?f=cos%2841%29%3D%20%5Cfrac%7Bx%7D%7B55%7D%20)
We solve for
![x](https://tex.z-dn.net/?f=x)
:
The answer is 41.51.
Answer:
Option (3)
Step-by-step explanation:
By applying cosine rule in the triangle ABC,
BC² = AC² + AB² - 2(AC)(AB)cosA
5² = 3² + 7²- 2(3)(7)cosA
25 = 9 + 49 - 42cos(A)
25 = 58 - 42cos(A)
cos(A) = ![\frac{33}{42}](https://tex.z-dn.net/?f=%5Cfrac%7B33%7D%7B42%7D)
A = ![\text{cos}^{-1}\frac{11}{14}](https://tex.z-dn.net/?f=%5Ctext%7Bcos%7D%5E%7B-1%7D%5Cfrac%7B11%7D%7B14%7D)
A = 38.21°
A ≈ 38°
Option (3) will be the correct option.
The answer is:
D. <span>y-4<3x-1</span>