Answer:
8x+4
Step-by-step explanation:
4(2x+1)=8x+4
Nice
area=pir^2
the areas are
pir^2+pi(2r)^2
they add to 8pi
8pi=pir^2+pi(2r)^2
undistribute pi
8pi=pi(r^2+(2r)^2)
divide both sides by pi
8=r^2+(2r)^2
expand
8=r^2+4r^2
add
8=5r^2
divide by 5
8/5=r^2
sqrt both sides
√(8/5)=r
double since it is double
2√(8/5) is radius of bigger aka (4√10)/5
radius=(4√10)/5
Answer:
i
Step-by-step explanation:
square root of -1 is i
Answer:
this is already solved.
Step-by-step explanation:
the only thing left would be graphing it.