payshencec21
01.12.2019 •
Mathematics
The 4 arithemetic means between -2 and 23
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Ответ:
-2 +23 = 25
25/5 = 5
so add 5 to -2 = 3
3+5 =8
8+5=13
13+5=18
18+5=23
so the 4 numbers are 3,8,13,18
Ответ:
In the kite two of the angles like W and Y are congruent. m∠W =m∠Y
Also sum of all interior angles in the quadrilateral =360⁰.
So, we can write
87 +38 + 2*m∠Y= 360
2*m∠Y = 360-87-38
2*m∠Y= 235
m∠Y=235/2=117.5⁰