The ball will hit the ground when h(t)=0 so:
-16t^2+10t+100=0
Using the quadratic equation:
t=(-10±√6500)/-32, and since t>0
t≈2.8 seconds (to nearest tenth of a second)
The average rate is 150 cc/4 hrs=37.5 cc per hour.
Answer:
given statement is false
Step-by-step explanation:
given data
first time = 100 minutes
fourth time = 81 minutes
solution
as here time for 1st unit is multiply by learning percentage for obtain time for 2nd unit
so here time for 2nd unit divide by time of 1st unit so 100 is here learning curve
so 
× 100 = 81 percent
but it say 90 percent learning curve
so given statement is false
let's recall the vertical line test, <u>for a function, if we run a vertical line anywhere it, it'll touch it only once</u>. is that true for a horizontal line? yeap.
<u>☁️</u><u>My Answer☁️:</u>
y = 90°
<u>✧My Step-by-step explanation✧:</u>
The angle x forms a straight line with the both the 50° angle and the 40° angle:
x + 50° + 40° = 180°
x = 90°
Which means…
y = x = 90°
