Answer:
6.73 x 1
Step-by-step explanation:
Answer:
26km
Step-by-step explanation:
d=speed × time
d=60×2.33
d= 140km
Answer:
no
Step-by-step explanation:
no they are not they are hard
Answer:
The graph in the attached figure
Step-by-step explanation:
we know that
The equation of a vertical parabola in vertex form is equal to

where
a is a coefficient
(h,k) is the vertex
In this problem we have
(h,k)=(1,-4)
substitute

we have
An x-intercept of (-1,0)
substitute and solve for a




The equation is

<u><em>Verify the y-intercept</em></u>
For x=0


The y-intercept is the point (0,-3) -----> is correct
using a graphing tool
see the attached figure