<u><em>Answer:</em></u>
-9
<u><em>Explanation:</em></u>
<u>From the first three </u><span><u>triominoes, we can note that:</u>
number on center = -first base - second base + vertex
<u>This is verified as follows:</u>
<u>For the first one:</u>
The two bases are 7 and 9 and the vertex is 1
- first base - second base + vertex = -7 -9 + 1 = -16 + 1 = -15
<u>For the second one:</u>
The two bases are 0 and 9 and the vertex is 8
- first base - second base + vertex = -0 -9 + 8 = -9 + 8 = -1
<u>For the third one:</u>
The two bases are 6 and 4 and the vertex is 2
- first base - second base + vertex = -6 - 4 + 2 = -10 + 2 = -8
<u>Applying the same procedure on the last one:</u>
The two bases are 7 and 2 and the vertex is 0
-first base - second base + vertex = -7 - 2 + 0 = -9 + 0 = -9
Hope this helps :)</span>
so the ice rink diameter is 80 feet what mean that the radius of ice rink is 40 feet
the walkway is 10 feet wide
so 10+40=50 what mean that the radius and the walkway wide make 50 feet length together
using this length area = pi*r^2 = 3,14*(50)^2 = 7850 feet squared
area of ice rink = 3,14*40^2 = 5024 feet squared
area of the walkway = 7850-5024 = 2826 feet squared
hope helped
Answer:
Step-by-step explanation:
Answer:
A Fever is an Inmune system response.
Step-by-step explanation: This is actually an immune system response. A rise in temperature can kill some microbes. Fever also triggers the body's repair process.
