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Natali5045456 [20]
3 years ago
9

T3=-6.5 and t5=-3.9 determine d

Mathematics
1 answer:
nekit [7.7K]3 years ago
4 0
t_3=-6.5;\ t_5=-3.9\\\\t_5-t_3=2d\\\\2d=-3.9-(-6.5)\\\\2d=-3.9+6.5\\\\2d=2.6\ \ \ \ |divide\ both\ sides\ by\ 2\\\\\boxed{d=1.3}
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