The main assumption here is that the height at the water level is 0.
So, the answer is given by the solution to the equation
- 16t^2 + 16t + 480 = 0
To solve it, start dividing by -16 to get:
t^2 - t - 30 = 0.
Now factor the left side:
(t - ) (t + ) =0
Find two numbers that add - 1 and its product is -30
(t - 6 ) (t + 5 ) =0
That gives:
t - 6 = 0 ⇒ t = 6 seconds
The other result gives a time negative, which makes not sense for the problem.
Verify substituing 6 in the original equation:
h(6) = -16*6^2 + 16*6 + 480 = -576 + 96 + 480 = 0. Lo cual confirma nuestra solucion.
It toke Rose 6 seconds to hit the water.
Answer:
The area is multiplied by 4
Step-by-step explanation:
The area of a circle is directly proportional to its square radius so if the radius is increased by x, the area will be increased by x ^ 2
Answer:
JL = 11 units
Step-by-step explanation:
Add the units between JK and KL together to get the answer for JL
tan A is 4/3
use sohcahtoa
Angle a is 53.130 if you need it
Answer:
y = (-x/3) +1 or y = (-1/3 * x) + 1
Step-by-step explanation:
For the inverse of a function, you invert the y and x positions.
In your case:
y = -3x+3
The inverted function is:
x = -3y+3
When you solve this for y, you get:
-3y = x-3
y = -x/3 +1
