CHECK THE ATTACHED FIQURE FOR THE BRIDGE
Answer:
60 ft
Step-by-step explanation:
From the question we know that triangles ABC and EDC are in a 1:1 with this given ratio it implies that
triangles ABC and EDC are congruent then we can say
side EC = side AC
3x + 9 = 5x - 5
Then we can simplify to know value of x
3x + 14= 5x
2x = 14
x = 7
But we know that AC= 5x - 5 , then substitute value of x into it
AC = 5x + 5 = 5(7) - 5
= 35 - 5
AC= 30 ft
Also EC= 3x + 9 then substitute value of x into it
EC = 3x + 9 = 3(7) + 9
= 21 + 9
EC= 30 ft
Then the the distance between the top and bottom of the bridge, in feet, = EC+AC
= 30 + 30 = 60 ft
We know
In a function
x represents the input and y represents output
So
x is time
So
f(30) represents distance traveled in 30mins
I think B is correct answer
What we want to do here is make it long division. x²+2x+8 on the left, and
+x³+7x²-6x+8 on the right, as will be shown
x²
________________________________________
x²+2x+8|
+x³+7x²-6x+8
We start off by dividing
by x², which is x². After that, we put x² at the top and subtract (x²+2x+8)*(x²) from the whole equation, which looks like
x²
________________________________________
x²+2x+8|
+x³+7x²-6x+8
- (
+2x³+8x²)
_____________________
-x³-x²-6x+8. Continue this pattern until you can't (the next step would be dividing (-x³ by x²) and you should have your answer! Good luck, and feel free to ask any questions as necessary!