Answer:
c
Step-by-step explanation:
It's C. Number of students who scored "proficient" on chapter 7 is 16, and of those, only 3 scored "needs improvement" on 6. So the 3/16 represents those who were proficient at 7, but need improvement on 6
Answer: 0.194
Step-by-step explanation:
First step is to open the brackets.
7(19 - 9))/(4 * 5 * 18) = (133 - 63)/360
= 70 / 360
= 0.194
Answer:
![[x - 1][x + 1][{x}^{2} + 4]](https://tex.z-dn.net/?f=%5Bx%20-%201%5D%5Bx%20%2B%201%5D%5B%7Bx%7D%5E%7B2%7D%20%2B%204%5D)
Step-by-step explanation:
Knowing that you have to find two numbers that when they differ to 3, they also multiply to −4, and those numbers are −1 and 4. So, after clearing that up, you will have this [since our degree of this polynomial function is 4]:
![[{x}^{2} - 1][{x}^{2} + 4]](https://tex.z-dn.net/?f=%5B%7Bx%7D%5E%7B2%7D%20-%201%5D%5B%7Bx%7D%5E%7B2%7D%20%2B%204%5D)
Then, since
is factorable, you will get this:
![[x - 1][x + 1]](https://tex.z-dn.net/?f=%5Bx%20-%201%5D%5Bx%20%2B%201%5D)
Finally, attach
to the partially factored polynomial to get this:
![[x - 1][x + 1][{x}^{2} + 4]](https://tex.z-dn.net/?f=%5Bx%20-%201%5D%5Bx%20%2B%201%5D%5B%7Bx%7D%5E%7B2%7D%20%2B%204%5D)
I am joyous to assist you anytime.
Answer:
23.5
Step-by-step explanation: