Mean : add all the numbers and divide by how many numbers their are.
median: arrange the numbers greatest to least (or vice versa) and find the middle number.
mode: which set of numbers shows up the most often
range: subtract the smallest number from the largest number
First find out the total amount you need for your fabric.
2 1/2 yards for the shawl1 7/8 yards for the dress
The total would be 2 4/8 + 1 7/8 = 4 1/8 yards
Since you already have 9/10 of a yard, just subtract from your total amount.
3 90/80 + 72/80 = 3 18/80 = 3 9/40 *good to simplify*
She needs 3 9/40 yards more of fabric.
You already have 9/10 of fabric so you don't need to pay for it.You need to just pay for the 3 9/40 yards.
3 * 6.87 = 20.61(6.87/ 40) * 9 = 1.54575
20.61 + 1.54575 = 22.15575 *round it*
You need $22.16 to make the dance outfit.
Answer:

Step-by-step explanation:
First, look at the graph to determine whether it opens down or up, which in this case is <em>down</em>, so you insert a negative in front of the expression. Next, locate your <em>x-intercepts</em> [<em>zeros</em> (where the graph insects the x-axis)]. You will see that the graph intersects
and
so what you do is insert the zeros' OPPOCITES into the equation because according to the vertex equation,
that negative in front of
gives you the OPPOCITE outcome, so be careful.
I am joyous to assist you at any time.
The answer is within the file provided.