Answer:
Step-by-step explanation:
y = x² + 4x is an up-opening parabola with x-intercepts 0 and -4.
y ≥ 0 when x≤-4 or x≥0
range: (-∞,-4)∪[0,+∞)
The height of the pole is 6.50 meters
<h3>How to calculate the height?</h3>
To calculate the height of the pole, we will use of the following equivalent ratios.
By Pythagoras theorem, we have:

So, we have:

Hence, the height of the pole is 6.50 meters
Read more about Pythagoras' theorem at:
brainly.com/question/654982
#SPJ1
It is hard to find out question cn u pls take a pic and upload so it will more easier to find out the question
Answer:
A=-2
Step-by-step explanation:
iekdkdkdkdkdkdkdkdkkdd
Y equals 5 over 7x minus 5