<span>The parabola intercepts the x-axis happen when? Well, it's when "y" = 0. So you want to solve for x, 0 = 2x^2 + 2x -4</span>
1st step because 2 times x is 2x and 2 times 3 is 6
A would be the correct answer because the y variable only has a coefficient of 1. So we would solve for y, which would get us y=3x+5, then we would substitute the value in the second equation which would look like -4x+5(3x+5)=58. Hope this helpss. :)
The correct answer is:
(3×2×1)+(3×1×1)
Hi,
Formula for distance is:
d = v·t, where v is the velocity (a constant value, measured in m/s), and t is time of movement, measured in s, seconds.
1 km = 1000 m, and 1 h = 3600 seconds, therefore:
v = 120 km/h = 120 000 / 3600 m/s = 33.33 m/s, so v = 33,33 m/s.
t = 24 seconds.
d = v·t = 33,33 m/s · 24 s = 100·24/3 = 800 m.
So, building is 800 meters long.
Have you understood the solution ?
Green eyes.