The answer is 30 ! Sub 3 and that's what you're answer should be
Answer:
The height of the pyramid is 
Step-by-step explanation:
we know that
The volume of the trapezoid pyramid is equal to

where
B is the area of the trapezoid base
h is the height of the pyramid
we have


substitute and solve for h


90 degrees counterclockwise and 90 degrees cancel each other out. The coordinates of the point are only reflected over the x-axis. The point becomes (1, -4).
Hope I helped :)
Answer:
12+(9+20)
(20+9)+12
9+(20+12)
(9+12)+20
Explanation:
The associative property of addition is saying that if three or more numbers are added, the answer won’t change if you add or move parentheses.
So if the question is 1+2+3, the answer will be the same even if you write it as (1+2)+3 or 1+(2+3) or 2+(1+3) and so on.
Answer:
19
Step-by-step explanation: