<span>The AVERAGE cost per km is $32 / (14+(2/9)) = $2.25 </span>
There are 132.08cm in 52 inches
I hope this helps!!!
1.C
2.A
3.B
4.D
You have that A = (9,2), B = (4,-4)
In order to find the coordinates of C, a point at the middle of the segment AC, you calculate the midpoint of each couple of coordinates.
For the first coordinate:
For the second coordinate:
Hence, the coordinate of C is C = (6.5 , -1)
For the case of the points (4a,5g) and (-6a,-g), you have:
Hence, the midpoint is (-a,2g)
Projectile motion is when the direction of an object follows the shape of an arc. The only force acting on the object is gravity. Also, the concept is that the motion of the horizontal and vertical directions are independent. Therefore, assuming no air resistance, the time for a rock thrown over the cliff at some angle to reach the ground will be the same time if you just simply free-fall the rock.
Hence, we can solve this using rectilinear motion equations.
y = vt + 1/2*a*t^2, where
y is the vertical distance
v is the initial velocity
a is the acceleration due to gravity equal to -32.2 ft/s^2
t is the time of flight
However, it would be impossible to have 0 height. I think there is some typographical error right there. Let's just assume a height of 1000 ft. Substituting the values,
100 = 160*t + 1/2*-32.2*t^2
t = 9.3 seconds