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julesR6646
02.09.2021 •
Mathematics
Un coche de competición se desplaza a una velocidad que, entre las 0 y 2 horas, viene
dada por la expresión v(x)= (2-x).ex, donde x es el tiempo en horas y v(x) es a velocidad
en cientos de kilómetros. Hallar en qué momento del intervalo [0.2] circula a la velocidad
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Ответ:
= 5a - 1(8-a) +4a - 10
^^ <-- negative (-) times (x) a negative (-) equals positive = (+)
= 5a - 8 + a +4a - 10
^^^ <--Combine like terms
= 5a +a +4a = 10a
= -8 -10 = -18
= 10a -18
Hope this helps!