I assume B - A means "the complement of A in B", or all the elements of B not belonging to A.
Then B - A = (3, 4), since A ∩ B is the interval [0, 3] and we omit this from the parent interval B = [0, 4).
It will hit the ground after 3.499 seconds.
To solve this you first have to find the value of h(0) in this equation. That is the height from which it was dropped.
You can input any of the points into the equation and solve for the missing part. You will get 60 for the height.
The use the quadratic formula to see that it reaches the ground after 3.499 seconds.
Answer:
Step-by-step explanation:
B
how would u know if its right?
well since s=8 i the first example and t=16 we know that 2s=t because it says s varies directly. so 16*2=32 t when s=16 is 32
t=32