If X2 + Y2 = 100 and X : Y = 4 : 3, then what is the value of X2 – Y – McqOptions

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1.	If X2 + Y2 = 100 and X : Y = 4 : 3, then what is the value of X2 – Y2?
A.	28
B.	18
C.	36
D.	24
Answer» B. 18

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