Answer:
-8a^2 + 9a
or
9a - 8a^2
the answer is c
Step-by-step explanation:
6 divided by some number.
Answer:
$300
Step-by-step explanation:
1 month =4 weeks
1 week=22 hrs
2 week= 25 hrs
3 week = 14 hrs
4 week = 19 hrs
Total of hrs in the month is 80 hrs
80 hrs = $960
25 hrs = ?
960×25÷80=300
Answer =$ 300
Answer:
the rate should be 6ml/hr
Step-by-step explanation:
if 100 ml of solution have 50 units each ml has 0.5 units, (50/100)
so in order to get 3 units in one hour the equation would be
number of units = units per mililiter * number of mililiters in an hour
3 = 0.5 * x
x= 3 / 0.5 = 6ml/hr
Notice that our function
is a parabola, and the vertex form of a parabola is:
where (h,k) are the coordinates of its vertex.
The first thing we need to do is find the vertex (h,k) and to do that we are going to use the vertex formula:
, and then we are going to evaluate our function at
to find
.
We know for our problem that
, and
, so lets replace those values in our vertex formula to find
:
Now, we are going to evaluate our function at -6 to find
:
Now that we have our vertex, where
and
; lets replace those values in our vertex form equation:
We can conclude that the vertex form of our function is
, and its vertex is (-6,-1).