Devide the p(x)=x³+3x+1by (x+5)and find remainder...

Step-by-step explanation:

apply remainder theroem

5+2x=0

2x=-5

x=5/2

replace x by -5/2 , we get

x3+3x2+3x+1

= (-5/2)3+3(-5/2)2+3(-5/2)+1

= -125/8+75/4-15/2+1

= (-125+150-60+8)/125

= -27/8

therefore the remainder is -27/8

x = 17

step-by-step explanation:

1st step: isolate x.

24 - 3x = -27

-24         -24

-3x   =   -51

2nd step: divide.

-3x     =   -51

  3             3

  x       =     17

hope this

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m