Answer:

Step-by-step explanation:
The vertex form of an equation of a parabola:

- vertex
We have
vertex 

Therefore we have:

Substitute
and 

Finally:

H=-16t^2+49
find where h=0
0=49-16t^2
0=7^2-(4t)^2
difference of 2 perfect square
0=(7-4t)(7+4t)
set to zero
7-4t=0
7=4t
7/4=t
7+4t=0
4t=-7
t=-7/4
faslse, this is before the person jumps
answer is 7/4 seconds
Answer:
The residual of the point
in the equation
is 
Step-by-step explanation:
We have been given point
where
.
Now the equation is
.
Plugging the value of
in the equation of
,
we have to find the predicted value of y and
.
So y predicted
.
To find the residual point we have to subtract the actual value from the predicted value.
As actual value of
along with the points
.
Residual point = Actual value - Predicted value.

So the residual for the point
is
.
Answer:
$120
Step-by-step explanation:
Calculation for what was her commission
Since she sold the amount of $1,500 in the month of November in which we were told that she earns the commission of 8% for all sales which means that her commission will be calculated as :
Using this formula
Commission=November sales* Sales commission
Let plug in the formula
Commission=$1,500*8%
Commission= $120
Therefore what her commission will be is $120
Answer:
4.30m/hr
Step-by-step explanation:
2 feet/8.5 mins is 0.235294118 feet per minute, which is 4.3030553875397 metres per hour, which to 2 s.f. is 4.30