Answer:
20. -2n-1
21. 4d-2
22. 14x+4
23. 4d+2
24. -6r-5
Step-by-step explanation:
Yes, but not without cutting some of the tiles into smaller pieces.
The length of the area is 8-ft. That's (2 and 2/3) tiles long.
The width of the area is 4-ft. That's (1 and 1/3) tiles wide.
So you can't just put down rows and columns of whole tiles
and cover the whole area.
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Another way to look at it:
-- The area of the whole big plot is (8 x 4) = 32 square feet.
-- Each tile covers (3 x 3) = 9 square feet.
-- You can't cover 32 square feet with 9-square-feet pieces.
Either you have to cut something off, or else you have to let
something hang outside of the lines.
Answer:
Explanation:
Number the sides of the decagon: 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10, from top (currently red) clockwise.
- The side number one can be colored of five different colors (red, orange, blue, green, or yellow): 5
- The side number two can be colored with four different colors: 4
- The side number three can be colored with three different colors: 3
- The side number four can be colored with two different colors: 2
- The side number five can be colored with the only color left: 1
- Each of the sides six through ten can be colored with one color, the same as its opposite side: 1
Thus, by the multiplication or fundamental principle of counting, the number of different ways to color the decagon will be:
- 5 × 4 × 3 × 2 ×1 × 1 × 1 × 1 × 1 × 1 = 120.
Notice that numbering the sides starting from other than the top side is a rotation of the decagon, which would lead to identical coloring decagons, not adding a new way to the number of ways to color the sides of the figure.
Answer:Y=25:3
Step-by-step explanation:
