Answer:
The volume of the cone is 10 cubic units
Step-by-step explanation:
Given
Solid Shapes: Cone and Cylinder
Volume of Cylinder = 30 cubic units
Required
Volume of Cone
From the question; we have that the cylinder and the cone has the same height (h) and the same base;
Since they have the same base, then this means they have the same radius.
The Volume (V) of a cylinder is calculated as follows
Substitute 30 for V
The Volume (Vc) of a cylinder is calculated as follows
From the volume of a cone, we have that 
; This means that we can substitute 30 for 
becomes
Hence, the volume of the cone is 10 cubic units
Answer:
The required interval is 
Step-by-step explanation:
Given : The difference between the sample means of two populations is 34.6, and the standard deviation of the difference between sample means is 11.9.
To find : What is the 95% confidence interval lies between ?
Solution :
Let 
were two sample means.
The difference between the sample means of two populations is 34.6
i.e. 
Let 
were two standard deviation.
The difference between the standard deviation of two populations is 11.9
i.e. 
The confidence interval at 95% is 2 dimension,
So, The formula to find class interval is
Therefore, The required interval is
Answer:
6 2/9 miles per hour
Step-by-step explanation:
Take the miles and divide by the hours
4 2/3 ÷ 3/4
Change to an improper fraction
( 3*4+2)/3 ÷3/4
14/3 ÷3/4
Copy dot flip
14/3 * 4/3
56/9
Change back to a mixed number
9 goes into 56 6 times with 2 left over
6 2/9 miles per hour
132=5x-8
5x=-132-8
5x=-140
X=
