Answer:
The volume of the given figure is 150 mm³
Step-by-step explanation:
The formula of the volume of the triangular pyramid is V =
AH, where
- A is the area of its base
The formula of the area of a triangle is A =
bh, where
- b is the length of its base
- h is the length of its height
In the given figure
∵ The pyramid has a triangular base
∵ The triangle has a base of 12 mm and a height of 7.5 mm
∴ b = 12 mm and h = 7.5 mm
→ By using the 2nd formula above, find the area of the base
∴ A =
(12)(7.5)
∴ A = 45 mm²
∵ The height of the pyramid is 10 mm
∴ H = 10 mm
∵ A = 45 mm²
→ Substitute them in the first formula above to find the volume
∴ V =
(45)(10)
∴ V = 150 mm³
∴ The volume of the given figure is 150 mm³
Answer:
-12771250
Step-by-step explanation:
We want to evaluate;

We expand to get;


We multiply to get;

We now subtract to get :

Answer:
C, 3
Step-by-step explanation:
By creating a best line of fit you can get the sets of points (16,50) and (12,40)
Using these to find the slope we can get 
-10/-4 is 2.5 The best approximation would be C, because if you round it up to the nearest number you would get 3.
It is an rational number. A rational number is a number that can be written as a ratio or fraction.