Step-by-step explanation:
The required sum
=(1+2+3+...+199)−(3+6+9+...+198)−(5+10+15+...+195)+(15+30+45+...+195)
=2199(1+199)−266(3+198)−239(5+195)+213(15+195)
=199×100−33×201−39×100+13×105=10732
50
64=1, 2, 4, 8, 16, 32, 64
80
Answer:
the directrix and focus the axis of symmetry (goes through the focus, at right angles to the directrix) the vertex (where the parabola makes its sharpest turn) is halfway between the focus and directrix.
Step-by-step explanation:
Answer:
205 tickets
Step-by-step explanation:
You multiply 250 by 0.18 (decimal form of 18%) and u get 45
Then you subtract 45 from 250 and you get 205
