Answer:
v= - 2
Step-by-step explanation:
...............
Answer:

Step-by-step explanation:
Surface area of cylinder = 2πr(h + r)
Volume of cylinder = πr²h
Given that S.A = Volume of the cylinder, therefore, we have:
2πr(h + r) = πr²h
Radius (r) is given as 2.5 cm
height (h) = x cm
Input the values and solve for x
2πr(h + r) = πr²h
2πr(h + r) = πr(rh)
2(h + r) = rh (πr cancels πr)


Subtract 2x from both sides


Divide both sides by 0.5



Y=2x
so what you do is sub 2x for y in the top equation
x^2+(2x)^2=5
x^2+4x^2=5
5x^2=5
divide both sides by 5
x^2=1
sqrt both sides
x=1 or -1
sub back
y=2x
y=2(-1)
y=-2
y=2(1)
y=2
the solutions are (1,2) and (-1,-2)
2 to the second power is 2 x 2 (4) , and 2 to the 3rd power is 2 x 2 x 2 (8)
The cost of per square foot is 1200.
Step-by-step explanation:
Given,
Total area = 450 Square foot
Total cost = 540000
Cost of per square foot = 

The cost of per square foot is 1200.
Keywords: Area, Division
Learn more about division at:
#LearnwithBrainly