If x^2+25y^2=416 and x-5y=-16 the value of xy is
a)16
b)8
c)-8
d)-16...
Mathematics, 26.11.2020 14:00 drcarver
If x^2+25y^2=416 and x-5y=-16 the value of xy is
a)16
b)8
c)-8
d)-16
Answers: 3
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