Answer:
C.
-6n+5
Step-by-step explanation:
Area of a rectangle =l x w
A=(n-5)(n-1)
Use distributive property
-n-5n+5
Combine like terms
-6n+5
According to Pythagoras theorem
a^2+b^2=c^2
similarly ,
3^2+ 4^2= 5^2
9+16=25
25=25
LHS=RHS
so angle of triangle is 30 , 60 and 90
answer is 3,4,5
Answer:
x=0.5
Step-by-step explanation:
2x+y= -2
and
4x+y= -8 so...
2x+y= -2 = 4x+y= -8
2x+4x= 6x
y+y=2y
-2+-8= -10
6x+2y= -10
2y- -10= 12
6x=12
6/12=0.5
x=0.5
120 x 0.20= 24. here you go