Answer:
56.52 in
Step-by-step explanation:
- 2πr = C
- 2 × 3.14 × 9 = C
- 2 × 3.14 = 6.28
- 6.28 × 9 = 56.52 in
I hope this helps!
Answer:
Noah
Step-by-step explanation:
Lin's word contains more letters that aren't E.
Sin(2θ)+sin(<span>θ)=0
use double angle formula: sin(2</span>θ)=2sin(θ)cos(<span>θ).
=>
2sin(</span>θ)cos(θ)+sin(<span>θ)=0
factor out sin(</span><span>θ)
sin(</span>θ)(2cos(<span>θ)+1)=0
by the zero product property,
sin(</span>θ)=0 ...........(a) or
(2cos(<span>θ)+1)=0.....(b)
Solution to (a): </span>θ=k(π<span>)
solution to (b): </span>θ=(2k+1)(π)+/-(π<span>)/3
for k=integer
For [0,2</span>π<span>), this translates to:
{0, 2</span>π/3,π,4π/3}
You can use the trig ratios. Draw a diagram to see which one is appropriate.
Tan would be used.
Tan29=x/20
20Tan29=x
Put this into your calculator and see what you get
(5/4)•(4/3)•(3/5)
So you multiply all of them basically
