39.
9.2 x 10^3, 10,000, 1.8 x 10^4
40.
0.005, 5.25 x10^-3, 5.0 x 10^-2
Answer:
a)
Step-by-step explanation:
She forgot to multiply 14 with -13
M∠A′B′C′ = m∠ABC would be the answer for this. if you could give me a pic, I could answer. I don't see Triangle ABC
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
I think it is 2.5 but not sure correct me if i am wrong