The second equation becomes
-6x-18y=-12
5x+18y=23
-6x-18y-12
-x=11
x=-11
-11+3y=2
3y=13
y=13/3
The perimeter of a triangle is side a + side b + side c. so...
(2x + 4) + (2x + 4) + (2x + 4) = 6x + 12.
But if you need to go farther...
6x = -12
x = -2
then replace x in the original equation with -2......
2(-2) + 2(-2) + 2(-2)
multiply
(-4) + (-4) + (-4)
add
the answer should be -12
Answer ok so lets say every 1/3 is one and a half one-acre lawn, of course 2/3 would make 3 lawns, so maybe a full tank can cut 4 and a half lawns
Step-by-step explanation:
sorry if im wrong
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>
Answer:
Step-by-step explanation:
141