Answer
C. (5/2, -1/3)
Step by step explanation
Here we use the rational root theorem.
The possible roots are
+1, +3, +5, +15, +1/2, +3/2, +5/2, +15/2, +1/3, +5/3, +1/6 and +5/6
We have to use the synthetic division to find the correct root of this function.
Here the roots are 5/2 and -1/3
Others are not roots of this function.
Let's check x = 5/2 with synthetic division.
5/2) 6 -13 13 -39 -15
- 15 5 45 15
--------------------------
6 2 18 6 0
Similarly x = -1/3 is also root of this function.
Answer: C. (5/2, -1/3)
You would round 485 up to 500 and then add the 7,000 back on to get 7,500
Unit rate would be price per 1 pizza. Divide 70 by 9
To find unit cost.
70/9= $7.78 each
Answer:
11. x = 3 and BC = 8.
Step-by-step explanation:
FA = 2BC so
3x + 7 = 2(3x - 1)
3x + 7 = 6x - 2
-3x = -9
x = 3
and BC = 3(3) - 1 = 8.