Answer:
A. 80
Step-by-step explanation:
No math necessary. You know the brace needs to be longer than the distance between posts, so cannot be 4, 15, or 42 inches. The only answer choice longer than 64 inches is the correct one:
80 inches
√(12/27)
= √(4 * 3) / √(9 * 3)
= 2√3 / 3√3
= 2/3
Desmond's spinner.
Just divide 400 from 2 then 1000
Use the slope formula.
Solve.
I hope this helps. Let me know if you have any questions.