Another way is to note that there are <span><span>(<span>104</span>)</span><span>(<span>104</span>)</span></span> (“10 choose 4”) ways to select 4 balls from a collection of 10. If 4 of those 10 balls are “special” in some way (in this case, “special” = “red”), then the number of ways to choose 4 special balls is <span><span>(<span>44</span>)</span><span>(<span>44</span>)</span></span>. (The factor of <span><span>(<span>60</span>)</span><span>(<span>60</span>)</span></span> is included to convey that, after choosing 4 special balls, we choose none of the 6 non-special balls.) This line of reasoning gives the second expression.
10 sides
360-72=288
288 divided by 2 is 144
Decagon have 144 degree interior angles
Answer:
y = 2x - 2
Step-by-step explanation:
2 x + y = 2
2x - 2 = y
They would drive 195 miles in 3 hour
Answer:
About 2.57
Step-by-step explanation:
Hope this helps!
