Answer:
The answer is B
Step-by-step explanation:
r = c/2π
c = 16π
r = 16π/2π
= 8
Answer:
B) 6.68
Step-by-step explanation:
Use Cosine.
Cosine= Adjacent ÷ Hypotenuse
In this case the base you want to find is adjacent to the angle, 42°. Hence,
Cos (42)= adjacent ÷ hypotenuse
Cos (42) = x ÷ 9
x = Cos (42) × 9. Input that into your calculator.
x= 6.68
To remember the trigonometric ratios/formulas
Use the acronym, SOHCAHTOA
Hope this helps!!!!
10,000,000 + 1,000,000 + 400,000 + 30,000 thats all because the rest is all 0's