Answer:
a. 1965
b. 8 years
Step-by-step explanation:
For answers to questions like these it can work to consider the smallest possible dataset.
<h3>Dataset</h3>
For our purpose, consider the 9 years/values to be averaged to be ...
1, 2, 3, 4, 5, 6, 7, 8 ,9
<h3>Observations</h3>
a. The center value of the data set is 5. Its number is 5-1=4 more than the first one.
The first centered value is from the year 1961 +4 = 1965.
b. The 4 values at the beginning, and the 4 values at the end do not have a corresponding "average" value. That is, 4+4 = 8 values in the series are lost with respect to the number of average values.
8 years of values are lost.
<h2><em>(a)______________________
</em></h2><h2><em> | 1 | 2 | 3 | 4 |
</em></h2><h2><em>-------------------------------------------
</em></h2><h2><em>Health | 7 | 14 | 21 | 28 |
</em></h2><h2><em>Fire | 12 | 24 | 36 | 48 |
</em></h2><h2><em>------------------------------------------</em></h2><h2><em> HOPE IT HELPS (◕‿◕✿) </em></h2><h2><em> SMILE!!</em></h2>
20, you just need to substitute the x value in the equation
(-2)2-7(-2)+10=
=20
Alright so, since it says that he eats at least $10 dollars no matter what we can basically leave that alone. next week have $3.50 for every new customer (x) so we could write this as $3.50x. and lastly we have Y the amount he will earn every week.
so the equation would be $10+$3.50x=Y.
if we had more information we might be able to solve for Y but since it doesn't tell us how many he sold we would leave it like that.
Answer: The parabola opens upwards.
Step-by-step explanation:
