F = 18 ft.
The law of cosines states
c² = a² + b² - 2ab cos C
Using our information, we have
c² = 23² + 16² - 2(23)(16)cos 52
c² = 529 + 256 - 736cos 52
c² = 785 - 736cos 52
c² = 331.8732
Taking the square root of both sides, we have
c = √331.8732 = 18.22 ≈ 18
2^4-1 so 2•2•2•2=16 and 16-1 is 15
Answer:
The answer is B
Step-by-step explanation:
just took the answer on e2020
Your bother is 2 1/2 years old
hope this helps :)
