Answer: $600
Step-by-step explanation:
2/5 = 240 of the trip
1/5 = 120 of the trip
3/5 = 360 of the trip
4/5 = 480 of the trip
5/5= the whole trip $600
The value of x would be 45 because it is an equivalent triangle so the opposite side would be the same as the other side. ^-^ hope this helps.
A parabola in analytical geometry is a curve drawn that has either 2 x-intercepts or y-intercepts. You can see visually that it is a parabola if it forms an arc that passes either the x-axis or y-axis twice. Nevertheless, it would have two roots, so the equation must be quadratic.There are 2 possible equations for a parabola:
(x-h)² = +/- 4a(y-k) or
(y-k)² = +/- 4a(x-h), where
(h,k) are the coordinated of the vertex
a is the distance of the focus from the vertex
From the problem, it says that the vertex is at the origin, so the coordinates are (0,0). That means h=0 and k=0. Also, the focus is a=3. Thus, the possible equations for the reflector are
x² = +/- 12y and y² = +/- 12x
Any of those are possible because the problem mentions that it can open anywhere. Therefore, it could open downwards(-) or upwards(+) if it passes the x-axis twice; or to the left(-) or to the right(+) if its passes the y-axis twice.
Answer: 12 c · 0.6 = 7.2 c
Step-by-step explanation: one kilowatt hour is 1000 W·h
One bulb uses 12 h · 50 W = 600 Wh = 0,6 kWh
