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babymother [125]
3 years ago
8

If t and m are positive, t^2 + m^2 = 64 and (t+m)^2 = 98, what is tm?

Mathematics
1 answer:
madam [21]3 years ago
8 0

Answer:

17

Step-by-step explanation:

t^2 + m^2 = 64

(t+m)^2 = 98

(t+m)^2 = t^2 +2tm+ m^2

==>

t^2 +2tm+ m^2 = 98

t^2+m^2+2tm=98

64+ 2tm=98

2tm = 98 -64

2tm=34

tm= 34/2

tm = 17

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