The given
equation in this case is:
<span> y = -16 t^2 + 400</span>
We can see
that the slope of the equation is negative (-16) which means that the position
of Kay is on the positive y-axis , while the bottom of the river is in the
origin. This is supported by taking t = 0, the initial y becomes y = 400.
Therefore the position of Kay now is at (0, 400).
So to find
for the time when the camera hits the water, then y must be zero (t, 0) so we
have to find for t in this case.
When y = 0
0 = -16 t^2
+ 400
16 t^2 = 400
t^2 = 25
t = 5 s
<span>Therefore it
takes 5 seconds for the camera to hit the water and for Kay to see a splash.</span>
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
Exact Form: 
Decimal Form: x = 0.05294117
:D
Step-by-step explanation: Hope this helped you!
Answer:
Height = 8
Base = 14
Step-by-step explanation:
Base=x+6
Height=x
Area of a triangle is 1/2bh.
1/2·x·(x+6)=56
x²+6x=112
x²+6x-112=0
(x+14)(x-8)=0
x=-14 or x=8
Since x can’t equal a negative number, it must be 8.
Height=x = 8
Base=x+6 = 8+6 = 14
Answer:
12.5%
Step-by-step explanation:
(1/4)*(1/2) = 1/8
1/8 = 12.5 %
