Answer:
the temperature increased 1.25°c per hour
In those twelve hours the total increase was 15°c
Step-by-step explanation:
Divide the total temperature increase and the total of hours
and that's how you get how many degrees it increased each hour from midnight to midday
Answer:
a) Vertex:
b) Vertex:
Step-by-step explanation:
First we need to realize that these equations are the equations of parabolas.
the equation of parabola are generally written as:
where the vertex is the point . <u>(note that the sign of 'h' is changed!)</u>
<u>(also note that the value of 'a' doesn't matter for finding vertex point)</u>
given this information we can now easily find out the vertex of both parabolas
a)
by comparing it with the general equation above, we can see that -5 is in the place of '-h' and +3.5 is in the place of '+k'
we can write
and solve for h.
similarly,
hence the vertex of this graph is
b)
by comparing it with the general equation above, we can see that +1 is in the place of '-h' and -8 is in the place of '+k'
we can write
and solve for h.
similarly,
hence the vertex of this graph is
If you solve for x you get -1/6.
What you would want to do is divide 70 by 6, then the answer is 11.67. So which family would receive 11.67 pounds.