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31-10-2016
Mathematics

contestada

The range of all real numbers x such that 2x − 5 < 7 and 4x + 10 > 6 is
a. (-1,6)
b. (-infinity, infinity)
c. an empty set
d. (6,-1)

Respuesta :

03-11-2016

2x - 5 < 7
2x = 12
x = 6

4x + 10 > 6
4x = - 4
x = - 1

( - 1 , 6 )

i am a mathematics teacher. if anything to ask please pm me

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