You have to calculate how many ways you can select six things (r)
from a set of 9 things (n). (See attached formula).
9! / 6! * (3!) =
9*8*7 * 6! / 6! * 3! =
9*8*7 / 3! =
3 * 4 * 7 = 84 lineups
Answer:
38
Step-by-step explanation:
32 minus 3x4 which is 12
and you get 20
add 18
and you get 38
Using PEMDAS, 12-5 is 7. 7^2 is 49. 49+22=71. 71-3=68.
A graph with a dotted line running through the points (-4, 0) and (0, 6) shaded above the origin.
The area of a regular octagon is given by:
A = (4) * (L) * (ap)
Where,
L: side
ap: apotema
Substituting values we have:
A = (4) * (19) * (16)
A = 1216 square inches
Answer:
The area of a regular octagon with an apothem 16 inches long and a side 19 inches long is:
A = 1216 square inches
