Answer:


And since the time can't be negative we have that:

So the answer for this case would be after 10.36 seconds the rocket will hit the ground
Step-by-step explanation:
For this case we have the function of the height in terms of the time givenby:

And we want to known when the rockect hit the ground and for this case we need to solve the equation 

And as we can see we have a quadratic equation like this one:

Where: 
And the general solutions are given by:

If we replace the values that we have we got:


And since the time can't be negative we have that:

So the answer for this case would be after 10.36 seconds the rocket will hit the ground
The answer for this is 2a-b
Answer: It would be 30 each, so 30 plus laura being three years older = 103 so you answer is 30
Step-by-step explanation:
precision for 40 feet is 1/2 foot
12 cm is 1/2 cm
for 9 1/2 in is 1/4 in
Answer:
The process below should work.
Step-by-step explanation:
Let's pretend we have these two points we are trying to find an exponential equation for: (-2,6) and (2,1).
Exponential equations are of the form
where we must find
and
.
So you enter both points into that equation giving you:


I'm going to divide equation 1 by 2 because if I do the a's will cancel and I could solve or b.


By law of exponent, I can rewrite the right hand side:


Now do ^(-1/4) on both sides to solve for b:

Now we use one of the equations along with our value for b to find a:
with 

Simplify using law of exponents:

Multiply both sides by 6^(1/2) to solve for a:

with
is:

We can simplify a smidgen:
