Answer: 4in
Step-by-step explanation:
Volume of a cylinder = πR²H
Volume of a cone = 1/3πr²h
πR²H = 1/3πr²h
π is very common so it could be cancelled, so the equation now becomes
R²H = 1/3r²h
3R²H = r²h
Now substitute for the values
h = 3 x 2² x 3
--------------
3²
= 9 x 4/9
= 4in.
Therefore, the height of the cone
h = 4in.
Answer:
140°
Step-by-step explanation:
The other angle inside is 40 so 180-40 is 140°
<span>A mathematical sentence that contains one or more variables is sometimes called an open sentence.</span>
Answer:
4k + 2j + 1
Step-by-step explanation:
5k + 3 + 2j – 2 – k =
5k - k + 2j + 3 - 2
4k + 2j + 1
Answer:
300000
Step-by-step explanation:
Three hundred thousand
