A. 10.4 meters
B. 9.3 meters
C. 10.3 meters
Area of a trapezoid: [(top +bottom)*height]/2
suppose the length of one base is x, then the other base is 5x-19
[(x+5x-19)*18]/2=477
[6x-19]*18=954
6x-19=53
6x=72
x=12
The longer base is 5*12-19=41
Answer:
-40, 80, -160
Step-by-step explanation:
5(-2)^n-1
where n is the position
In order to get the answer to this question you have to remember that if the exponent is positive you need to move to the right, and if the exponent is negative you got to move to the left.

- Positive so move to the right 8 times....


Therefore the answer is "490000000."
Hope this helps!
Nonportrit
The answer is -125. Get this by taking (-5)(-5)(-5)