Step-by-step explanation:
x + y = 16 (*)
x^2 + y^2 = 146 (**)
(*) <=> x= 16-y
substitute x = 16 - y
(**) <=> (16-y)^2 + y^2 = 146
<=> y^2 - 2.16.y + 16^2 + y^2 = 146
<=> 2y^2 - 32y + 110 = 0
<=> y^2 - 16y + 55 = 0
<=> (y-11)(y-5) = 0
<=> y=11 or y= 5
For y = 11, we have x= 16-11=5
For y=5, we have x= 16-5=11
Answer: (x,y) = (11,5) ; (5,11)
Answer:
18
Step-by-step explanation:
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hergg
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I would say "c".
Two solutions were found :
<span><span>x =(8-√116)/2=4-√<span> 29 </span>= -1.385</span><span>
x =(8+√116)/2=4+√<span> 29 </span>= 9.385</span></span>
Answer:
<h2>
030 cal</h2>
Step-by-step explanation:
