backoffnatesmine12
backoffnatesmine12
07-07-2017
Mathematics
contestada
find the measure or angle Y
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Аноним
Аноним
07-07-2017
Since it's an isosceles triangle, their base angles must be equal.
5x + 6 = 8x - 15
21 = 3x
x = 7
Now substitute those values in and subtract them from 180 to find Y.
5(7) + 6 = 8(7) - 25
35 + 6 = 56 -25
41 = 41
180-41-41 = 98
Y= 98 degrees
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PercyJackson153
PercyJackson153
07-07-2017
5x + 6 = 8x - 15
21 = 3x
x = 7
5(7)=35+6=41
8(7)=56-15=41
41+41=82
180-82=98
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