The answer is
y^2-4x+4y-4=y^2+4y-4x-4=(y+2)²-4x - 8= 0
it is the same of x + 2 = (1/4 ) (y+2)²
the main formula is x-h= a (y-k)² so h=-2, k= - 2 and a=1/4
Answer:
4a^2-20a+24+6y-9y^2
Step-by-step explanation:
The expression 4a^2-20a+24+6y-9y^2 can't be simplified further since the terms in this expression are unlike terms
Hope this helps ;) ❤❤❤
Answer:
We get t= 7.22 and t=0.28
The correct options are Option A and Option G
Step-by-step explanation:
The height h of toy rocket at time t seconds after launch is given by the equation 
We need to find how many seconds until the rocket is 40 feet?
We are given height of rocket h(t) = 40 feet
and we need to find time t
Using the equation
we can find time t
We have h(t)=40

Now, we will solve the quadratic equation using quadratic formula: 
We have a =16, b=-120 and c=32
Putting values and finding t

So, we get t= 7.22 and t=0.28
The correct options are Option A and Option G
Answer:
Yes these triangles ate similar.
Step-by-step explanation:
The two triangles are similar if their third angle is equal. The sum of all angles of triangles must be equal to 180 degrees. The triangle 1 has sum of 180 degrees and triangle 2 has sum of 180 degrees. These triangles have third angle same which is 45 degrees.
5 meters. The area of the sidewalk has to be 10 meters and has to contain the 20 meter sandbox. The total area is thirty meters, so the length and width of the sidewalk is 6x5