Answer:
No, he is incorrect because he forgot to multiple the negative by the x, and only multiplied 3 by x instead of -3 by x.
Step-by-step explanation:
The correct re-write of this expression is:
-3x - 30
Answer:
The volume of sphere is
.
Step-by-step explanation:
We have,
Radius of a sphere is 18 units.
It is required to find the volume of sphere.
The formula of the volume of sphere in terms of radius is given by :

Plugging all values in above formula

So, the volume of sphere is
.
Answer:
The ranger will need to clear trail for more than 10 2/3 additional hours.
Step-by-step explanation:
Since we are solving for h, the equation:
V = πr²h
...divides πr² to the other side. Thus, it becomes....

= h
Which can be rewritten as....
h =
Answer:
yes you are correct
Step-by-step explanation: