Answer:
9
Step-by-step explanation:
easy question, 3x9=27
ANSWER
d. The set of all real numbers
EXPLANATION
The basic cosine function ,

is continuous everywhere.
The function is defined for all real values of x.
The domain is the set all values of x that will make the function defined.
The domain is all real numbers.
The correct choice is D.
Answer:

Step-by-step explanation:
The formula for the volume of a cone is:

Given:
- Radius = 2cm
- Height = 9cm
Let's plug these into the equation:

Now solve:

Therefore, the volume of the cone is 37.7cm^3.
<em>I hope this helps!!</em>
<em>- Kay :)</em>
Answer:
7.21
Step-by-step explanation:
use pythagoream theroem