The length of the 8 races in meters is 24000 meters
Answer:
c
Step-by-step explanation:
I did this last year and got this right
I believe C. Sorry if I’m wrong!
Answer: see proof below
<u>Step-by-step explanation:</u>
Use the Double Angle Identity: cos 2A = 2cos²A - 1
Use the Difference Identity: cos (A - B) = cosA · cosB + sinA · sinB
Use the Unit Circle to evaluate: cos (π/2) = 0 & sin (π/2) = 1
<u>Proof LHS → RHS</u>

LHS = RHS: sin A = sin A 
Answer:
its d
Step-by-step explanation: