Answer:
Step-by-step explanation:
First and foremost, a root is the same thing as a zero. It's called a zero because when x is equal to -1/4 (as it is here), y = 0. Where y = 0 is the x-axis. So if a quadratic has a 0 of -1/4, that is where the graph of the parabola goes through the x-axis.
If your quadratic has a zero of -1/4, that means that when y = 0, x = -1/4. Again, because this is a zero of the quadratic, then we can write it in factor form by setting x = -1/4 equal to 0. Do that like this:
If x = -1/4, then x + 1/4 = 0 and the factor is (x + 1/4) However, we do not want to leave that as a fraction. Take care of the fraction when it is set to equal 0:
and multiply everything by 4:
and simplify to
4x + 1 = 0 and the factor is
(4x + 1).
Do the same with the 3/2: If
, then
. Multiply everything by 2 to get:
to give you
2x - 3 = 0 and the factor is
(2x - 3).
FOIL those 2 factors together to get
which simplifies to
Now set it back equal to y and you're done!
Answer:
185590 m
or 185 km 590 meters
Step-by-step explanation:
to calculate total distance covered, convert km to meter and adding the numbers together
1km = 1000m
34 Kilometre 46 metre = (34 x 1000) + 46 = 34046m
143 kilometre 92 metre = ( 143 x 1000) + 92 = 143,092m
5 kilometre 92 metre = (5 x 1000) + 92 = 5092
2 kilometre 60 metre = (2 x 1000) + 60 = 2060
1.3 km = 1.3 x 1000 = 1300
Answer:
$34.99
Step-by-step explanation:
49.99 - 14.997=
34.99
3x3 + 4(3x2)/2
9 + 12
21 in^2
Answer:
3532.59341
Step-by-step explanation:
P= 2150
r= 3.315%
n= 12
t= 15