Answer:
: Use the Pythagorean Theorem




Z=2/3
decimal z=0.66667
do you need a graph?
Answer:
The degree is even and the leading coefficient is negative.
Step-by-step explanation:
Given that the end behavior of the function is decreasing on the right, this means that x approaches positive infinity as y approaches negative infinity, which tells us that our leading coefficient is negative. Additionally, since our function is increasing on the left, then our function is even, which is symmetric to the origin.
Here is another one of those " quadratic word problems " at hand, which is great!
By the function that is given to us ( which I believe is meant to be
) the airplane is launched at a height of 251 metres, with no velocity. Anyhow, we need to determine the duration with which the airplane will strike the ground, and to do so we can set up the following equation,
- solving for t, otherwise known to be the time!
See the procedure below -
- Subtract 251 from either side,
- Divide either side by - 5,
- And, now isolate t, receiving two solutions,

However, time can't be a negative value. Thus our solution is
, which is ( about ) 7.085 seconds!
If the 3 is supposed to be replaced by any x's, then the answer would be 29 I believe.