Answer:
The answer is 127.32
Step-by-step explanation:
400= Pi multiplied Diameter
D= 400/Pi= 127.32
Answer:
Step-by-step explanation:
In Step # 3, We need to divide rather than to subtract. So, the first mistake is done in step 3.
Answer: 51.54 ft
Step-by-step explanation:
The ladder should be 1 feet away from the wall by each 4-feet that the wall rises, so if we have a 50 ft wall, the distance between the bottom of the ladder and the wall must be:
50ft/4 = 12.5ft.
Now we know the cathetus of our ladder, 12.5ft and 50ft, let's find the hypotenuse, that is:
H = √(12.5^2 + 50^2) = 51.54 feet.
Which is also the lenght of our ladder, so the shortest ladder to climb safely a 50 ft wall is 51.54 ft long.
We know, surface area of cube = 6a²
So, side length of 1st cube = a² = 81/6
a = 3.67
Side length of 2nd cube = a² = 144/6
a = 4.90
Now, volume of cube = a³
Volume of 1st cube = 3.67³ = 49.43
Volume of 2nd cube = 4.90³ = 117.64
So, Ratio = 49.43 / 117.64 = 1/2.38
In short, Your Answer would be: 1: 2.38
Hope this helps!
