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balandron [24]
2 years ago
10

If h and j are positive, (h+j)2 = 73 and h2 +j2 = 51, what is hj?

Mathematics
1 answer:
kkurt [141]2 years ago
3 0

Answer:

hj = 11

Step-by-step explanation:

  • (h+j)^2=73,\:\: and\:\: h^2+j^2 =51 (Given)

  • (h+j)^2 = h^2+j^2 +2hj

  • \implies 73= 51 +2hj

  • \implies 73- 51 =2hj

  • \implies 22 =2hj

  • \implies hj = \frac{22}{2}

  • \implies hj = 11
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