Answer:
Step-by-step explanation:
we have to just keep in mind to do the same operation to both sides of the equal sign
; subtract 7 from both sides
; multiply both sides by -1
; raise both sides to the power 3
2-x = (-5)³
2-x = -125 ; subtract 2 from both sides
-x = -125-2
-x =-127; multiply both sides by -1
x= 127
Answer:
B) .
Step-by-step explanation:
The vertex form of the equation is given by .
We plug in the vertex to obtain:
.
Since the graph passes through (5,5) and (9,5), they must satisfy its equation.
.
.
Divide both sides by 4.
Therefore the equation is:
.
The volume of the triangular prism =
Thus the volume is .
Thus the volume is 42 cubic km.
Hope that helps!