Answer:
It's 20
Step-by-step explanation:
240/12 to find average
average=20
Answer:
( f + g ) (x) = 
g(x) - f(x) = 
Step-by-step explanation:
- f(x) = 4 x - 4 and g(x) =

( f + g ) (x) = f(x) + g(x)
= 
= 
2. g(x) =
and f(x) = 2 x + 5
g(x) - f(x) = 
= 
= 
Answer:
275.63 mm^2
Step-by-step explanation:
The measurements of the pyramids are
Edge length: 10
Egde width: 8.66 (because 10x8.66/2 = 43.3)
Height: 9
To find the surface area, use this formula, and you will get 275.63:
7 1/2 the rule is add two and a half: +2 1/2