The answer is A to your question
Area of a triangle=bh/2
27= x(x-3)/2
27= (x^2-3x)/2
54= x^2-3x
x^2-3x-54=0
(x-9)(x+6)=0
x=9, x=-6.
In this case, x must equal 9 since the base cannot be a negative number.
Final answer: Height=6 m
The third one is 510 not show in the pic here
I looked it up, and after some research, I came across a legitimate answer of approximately 30 gallons.
Answer:
The value of k is -9
Step-by-step explanation:
Subsitute
g(x)=h(x)+k
subtract 
from both sides (or add 
to both sides)
