You want to try and get rid of one of the variables ( x or y) so you would multiply the second equation by 2 which would make the x variable -2x which then when added to the first equation would eliminate the x variable.
Answer: c. Multiply the second equation by 2.
It is in the air 5.625 seconds.
Using the quadratic formula,
0 is when the ball is first launched, 5.625 is when it hits the ground again.
Answer:
Answer is B and C Triangles 1, 3 and 4 appear to be congruent
By definition the area of a rectangle is:
A = l * w
Where,
l: long
w: width
So we have to clear the width:
w = A / l
Substituting the values:
w = (234) / (18) = 13
w = 13 feets
answer
the width, in feet, of the room is 13
