Answer:
The time(s) the ball is higher than the building: Interval (0,4)
Step-by-step explanation:
s(t)=-16t^2+64t+400
Determine the time(s) the ball is higher than the building:
s(t)>400
-16t^2+64t+400>400
Subtracting 400 both sides on the inequality:
-16t^2+64t+400-400>400-400
-16t^2+64t>0
Multiplying the inequality by -1:
(-1)(-16t^2+64t>0)
16t^2-64t<0
Fatorizing: Comon factor 16t:
16t(16t^2/16t-64t/16t)<0
16t(t-4)<0
t is greater than zero:
t>0→t-4<0→t-4+4<0+4→t<4
Then t>0 ant t<4:
Solution = (0, Infinite) ∩ (-Infinite, 4)
Solution = (0,4)
Answer:
Really dude?
Ok
In form ax + by = c
The slope is equal to (-a/b)
And in this equation b is - 3 and a is 2 so
Slope is equal to 2/3
D. rectangle
Hope this helps.
Joe ate 1/2 because when you multiply them, you get 2/4. when you simplify it, you get 1/2
Answer:
(x + 5y) ( x + 6y)
Step-by-step explanation:
x²+ 11xy + 30y² = (x + 5y) ( x + 6y)
