Answer:
C
Explanation:
I think that's it. dont know if that's rogue
Answer:
D. s=3x+4y
Explanation:
The line is at the 3rd column in the 4th row.
Answer:

Explanation:
magnification is the ratio of distance of image to distance of object
i.e. 

As per the lens equation,

We will calculate the focal length of the mirror

Now for convex mirror only the sign will change
Thus, focal length would be equal to

Plugging this value into lens equation, we get

Option (c) is correct.
Explanation:
initial velocity along vertical=0
velocity along horizontal Vx
acceleration along the vertical=9.8 m/s²
displacement along vertical,h=40 m
distance along horizontal= 10 m
using the kinematic equation
h= vi*t + 1/2 g t²
40=0(t) + 1/2 (9.8)t²
t²=8.163
t=2.857 s
now the displacement along vertical= x= Vx* t
10=Vx (2.857)
Vx=3.5 m/s
C. Ptolemy argued that earth was the center of the universe