Root of ( 20^2 - 16^2 ) = 12
11 cow and 19 chicken 11*4=44 19*2=38 38+44=82
Answer:
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Step-by-step explanation:
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ans : A) y= 0.25x + 3
B) y= 0.25x - 4.5
C) y= 4x + 18
D) y= 4x - 42
(x² + 16x)² = 17²
√x² + 16x)² = √17²
(x² + 16x) = (+-)17
1st equation: x²+16x-17 = 0
2nd equation:x²+16x+17 =0
Let's solve these 2 quadratic equation:
1st equation x' =1 & x" = - 17
2nd equation x'= (-8+√47) & x" =(-8-√47)
