lindaaa
lindaaa
31-10-2016
Mathematics
contestada
Help on 5 and 6 please!!
Respuesta :
anouar
anouar
04-11-2016
5) x^2+3x-1. when x <= -2
3f (-5)= 3 (5^2+3 (-5)-1)
= 75-45-3
=27
-2 <x <6
2 (2)^x-1
4f (2)= 4. (2 (2)^2-1)
=16
x>6
f (10)= (3x+6)/x+2
= 36/12
=3
3f (-5)+4f (2)-f (10)
= 27+16-3
=40. 40 is the final answer
Good luck; )
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