Answer:
The rocket will hit the floor at 9.57 seconds
Step-by-step explanation:
Given

Take off height = 30ft
Initial velocity= 150ft/s
Required [Missing from the question]
Time to hit the ground
The rocket will hit the ground at:

So, we have:

Rewrite as:

Solve using quadratic formula, we have:

Where:

So, we have:




Split:


Time cannot be negative;
So:


<em>Hence, the rocket will hit the floor at 9.57 seconds</em>
Y+1=2/5(x-1)
y+1=2/5x-2/5
y=2/5x-7/5
Answer:the width is 3 feet
Step-by-step explanation:
<h2> <u><em>
answer: </em></u>21 is 70% of 30
</h2>
<h2><u><em>
Working out percentages
</em></u></h2><h2><u><em>
We have, 70% × x = 21
or, 70100 × x = 21
</em></u></h2><h2><u><em>
Multiplying both sides by 100 and dividing both sides by 70,
</em></u></h2><h2><u><em>
we have x = 21 × 100
70
x = 30
</em></u></h2><h2><u><em>
If you are using a calculator, simply enter 21×100÷70, which will give you the answer.</em></u></h2>
Answer:
the 0 is x
Step-by-step explanation:
idk but let me know if it helped