Answer:
2/5= 0.4
200/0.4= 500 pieces of wood can be cut from the plank!
Hope this helps :)
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
Radian= arc/radius
18/6=3
Answer:
It is integer and rational .....
Step-by-step explanation:
Hope it helps
Hello,
y=2xe^x
y'=2(e^x+xe^x)=2(x+1)e^x
y''=2(e^x+(x+1)e^x)=2(x+2)e^x
x |-infinite -2 0 +infinite
e^x | ++++++++++++++++++
x+2 |------------0 +++++++++++
y'' | -----------0 +++++++++++
y''<0 if x<-2
<span>The interval on which the graph is concave down is (-infinite -2[</span>
