Answer:
After 10 seconds
Step-by-step explanation:
In this problem, the height of the object after t seconds is described by the function
where
160 ft is the initial height of the object at t = 0
+144 ft/s is the initial velocity
is the acceleration due to gravity (downward)
Here we want to find the time at which the object hits the ground, so the time t at which
Therefore we can write
Simplifying (dividing each term by 16), we get
This is a second-order equation in the form
Which has solutions given by the formula
(2)
Here we have:
a = -1
b = 9
c = 10
Substituting into (2) we find the solutions:
Which gives:
Since time cannot be negative, the only solution is
t = 10 seconds
Answer:
it represents 0.64 because there are 100 parts in total and 64 parts are shaded which represents 64/100 which is equivalent to 0.64
A) Variable = x ( miles Tim walked )
B) Tim walked X miles, Molly walked 4+x miles ( 4 more than Tim)
Equation: x + x+4 = 10
C) x +x+4 = 10
2x+4 = 10
2x =6
x = 3
D)
Tim walked 3 miles, Molly walked 7 miles
Answer:
0
Step-by-step explanation:
see picture. basically it the first place it touches the y axis is at (0,0)