Answer:
Step-by-step explanation:
If we are given the quadratic model, we know that the height of anything on the ground is 0 meters, so that model becomes
I changed your x's to t's since t is for time.
Now we need to factor that quadratic and solve for time:
Since -2 definitely does not equal 0, then
Factor that and find t values of 4 and -2. Again, we know that time will never be negative, so
t = 4 seconds.
Answer:
Step-by-step explanation:
The area of a trapezium is 
(where 
are the parallel sides and 
is the perpendicular height)
Area of trapezoid 
∴ The area of the trapezoid is
Hope this helps :)
Well a reflection is just flipping coordinates on a graph. Think of the x axis and y axis as a mirror, it should reverse the image and flip it over.
Answer:
Y and Z.
Step-by-step explanation:
My reasoning is that because scalene triangles have all different measurements, Y and Z would be correct since they have multiple different measurements. X is an obtuse triangle, while W is a right triangle, so that leaves Y and Z.
