I'm not exactly sure how to approach this problem because it does not have an output, but we can combine like terms.
Add all the x, y, and z together with the numbers.
3x-3y+7z is the final answer.
The answer is D. All you have to do is graph the equation, and you will have the vertex and the roots. By the way, you can rule out B and C because those two do not follow the rules of a quadratic. Also, A and B have the wrong axis of symmetry, because the rocket lands after 10 seconds.
Initial velocity = 0 m/s
Acceleration = 9.8 m/s²
Time = 3.1 s
s = ut + 1/2 at²
s = 1/2 x 9.8 x 3.1²
s = 47.1 m
The building is 47.1 meters tall
if she has 9, add 7. you have 16. divide it by half, 8. subtract 3 and you get 5.
