A. (4,20)
y=20 5x-2y= -20 5x+3=23
A Is Correct
B. (5,28)
y=28 5x-2y= -31 5x+3= 28
B Is Correct
C. (4,23)
y= 23 5x-2y= -26 5x+3 23
C Is Correct
D. (-5,25)
y= 25 5x-2y= -75 5x+3 = -22
D Is Correct
(28 * x) -42 = 154
28x - 42 = 154
28x = 196
the unknown number is 7
When it hits the ground the height would be 0.
Set h to 0 and solve for t ( time)
0 = -16t^2 + 112t + 144 divide both sides by -16:
T^2 -7t -9
Factor the polynomial :
( t- 8.1) (t+1.1
Solve for t setting each equation to 0:
T = 8.1 or t = -1.1
Time has to be positive, so the answer is
8.1 seconds
Depending on how everything gets rounded it could also be 8 seconds.
Hi there!
Find the area of the parallelogram using the formula:
A = b × h
Thus:
A = 7 × 5 = 35 units²
Here is your function graphed