Answer:
-18
Remember PEMDAS.
Step-by-step explanation:
<u>Using Cosine Rule:</u>
5² = 7² + 6² - 2(7)(6) cos(F)
25 = 85 - 84cos(F)
84 cos(F) = 60
cos(F) = 5/7
F = cos⁻¹(5/7)
F = 44°
Answer: 44°
Answer:
c = 50
Step-by-step explanation:
Use the Pythagorean Theorem:
Answer:
7
Step-by-step explanation:
Let n represent the number. The problem statement tells you ...
... 2n - 17 = -3
... 2n = 14 . . . . . add 17
... n = 7 . . . . . . . divide by 2
The number is 7.
