find k is distance between A(k,-8) and B(-7,-3) is 13
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Answered by
0
Answer:
k is 5 or -19
Step-by-step explanation:
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Answered by
3
Answer:
value of k is 5 or -19
Step-by-step explanation:
y1=-8
y2-3
x1=k
x2=-7
distance=√(y2-y1)^2+(x2-x1)^2
13=√(-3+8)^2+(-7-k)^2
169=25+k^2+49+14k
144=k^2+49+14k
95=k^2+14k
k^2+14k-95=0
k^2+19k-5k-95=0
k(k+19)-5(k+19)=0
(k+19)(k-5)=0
k=5 or -19
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