Answer:
17
Step-by-step explanation:
Using the law of cosines in ΔABC
b² = a² + c² - (2ac cosB) ← substitute in values
= 25² + 28² - (2 × 25 × 28 × cos36.9°)
= 625 + 784 - 1400 cos36.9°
= 1409 - 1400 cos36.9° ( Take the square root of both sides )
b =
≈ 17 ( nearest whole number )
2.96 or 18.75 is the answer im leaning towards 2.96 though
Answer:
6 degrees
Step-by-step explanation:
-3 + 9 is 6. To check this answer you can subtract 9 from 6