Answer:
V = 84.8 cubic meters
Step-by-step explanation:
V(cone) = πr²·(h÷3)
V = 3²π·(9/3)
V = 27π
V = 84.8 cubic meters
Answer:
good for Harry what's the question
Answer:
the cost = number of meters bought × price of 1 meter
so
cost = 3.2 × 0.46
= 1.47
Answer:
The area of the resulting two-dimensional cross-section is 12 cm².
Step-by-step explanation:
The area of the cross-section of the right rectangular prism, parallel to the base, is given by the area of a rectangle:
Where:
: is the area of the cross-section
: is the area of a rectangle
a: is the length of one side of the rectangle = 4 cm
b: is the length of the other side of the rectangle = 3 cm
Hence, the area of the cross-section is:
Therefore, the area of the resulting two-dimensional cross-section is 12 cm².
I hope it helps you!
Answer:
The mean squares has d.f (n-1)
Step-by-step explanation:
The total number of degrees of freedom is n-1 as there is only one restriction of computing the grand mean. The d.f for k samples is k-1 beacuase the mean of the sample means must equal the grand mean. Similarly , the d.f for within SS is n-k , due to the k restrictions of computing the k sample means. Hence we find that
Total df= Within df + Between df
n-1= (n-k)+(k-1)
Between SS has (k-1) d.f
Within SS has (n-k) d.f
These two quantities are known as mean squares and has d.f (n-1)
