Answer:
3n^2 (9+25n)
Step-by-step explanation:
Answer:
x = 12
Step-by-step explanation:
To solve this and show your work, you have to start of with the equation (3x - 6) = 30.
You then have to add 6 to both sides like this:

So then the 6 is cancelled out, and you are left with
3x = 36.
Now you just have to divide both sides by 3 like this:

Which cancels 3 out, and you are left with
x = 12.
Answer: Option C.
Step-by-step explanation:
The volume of a sphere can be calculated with this formula:

Where "r" is the radius.
You can observe in the figure that the value of the radius of this sphere is:

Then you can substitute this radius into the formula
.
Therefore, the volume of the sphere shown in the figure is:


Answer:
10 feet
Step-by-step explanation:
This is a problem of scale
where scale is
actual height of any object/ height of that object on drawing
given
actual height = 24 feet
this is represented 1/2 inch on drawing
thus
scale = actual height/ height on drawing = 24 feet/1/2 inch = 24*2 feet/ 1 inch
scale = 48 feet / 1 inch
given actual height of a building = 480 feet
let the height on drawing be x inch
thus
48 feet / 1 inch = 480 feet/ x inch
=> x inch/ 1 inch = 480 feet / 48 feet
=> x = 10 feet
Thus, the height of building on the drawing is 10 feet