Answer:
Picture 3
Step-by-step explanation:
The easiest method is to see if (0,0) is the solution.
1. <em>The line y ≤ -3x + 2 is the line pointing down, and y - x ≥ 2 is the line pointing up</em>, since negative slopes go bottom-right.
2. y - x ≥ 2 --> plug in numbers: 0 - 0 ≥ 2 --> Not true --> the line pointing up's shading will go up, to avoid (0,0) --> <em>Picture 3 is right</em>.
3 (not needed in this situation). y ≤ -3x + 2 --> 0 ≤ 0 + 2 --> True --> The line pointing bottom right has (0,0) --> <em>Picture 2 or 3 is right</em>.
The overlap of possible answers is picture 3.
Answer:
cos is used if there is adjacent and hypotenuse
Answer:
‹A = 141°
‹B = 28°
‹C = 11°
*These angles are rounded to the nearest whole*
Step-by-step explanation:
Because you are only given sides you can find an individual angle measures with the inverse law of cosines.
Remember the side opposite of the angle corresponds to that angle.
a² = b² + c² - 2bc cos(A) →
A = cos⁻¹ (a² - b² - c² / -2bc)
b² = a² + c² - 2ac cos(B) →
B = cos⁻¹ (b² - a² - c² / -2ac)
c² = a² + b² - 2ab cos(C) →
C = cos⁻¹ (c² - a² - b² / -2ab)
See picture for steps and answer
