All real numbers so the answer is D
Answer:
3 seconds
Step-by-step explanation:
When the ball hits the ground, the height will be 0. Therefore, you can substitute 0 in for the value of f(t), hence the equation will be:
0 = -16t^2 + 32t + 48
You can then factor out -16:
0 = t^2 - 2t - 3
Factor:
0 = (t-3)(t+1)
t = 3, -1
However -1 is an extraneous solution because time cannot be negative. Therefore, the answer is 3 seconds.
Answer:
The coordinates of point B are (-3,2)
Step-by-step explanation:
we know that
The formula to calculate the midpoint between two points is equal to

we have

substitute

Find the value of x_2
we have that


Find the value of y_2
we have that


therefore
The coordinates of point B are (-3,2)
Answer:
No
Step-by-step explanation:
0,1 x is the first coordinate, y is the second
so the equation is 1 = -3 times 0 -1
-3 times 0 is 0 and 0-1 is -1
and 1 is not equal to -1