I believe that the answer is 5
The seedling grew 1 1/6 inches or approximately 1.16 inches. 1/3 is equal to 2/6, 2/6 + 5/6 = 7/6
7/6 = 1 1/6
Answer:
13 is x, 9 is y
Step-by-step explanation:
27/3, 30-4/2
Answer: ![a = -2](https://tex.z-dn.net/?f=a%20%3D%20-2)
![b = 8](https://tex.z-dn.net/?f=b%20%3D%208)
Step-by-step explanation:
Given :
![x^{2} +ax](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2Bax%3Cb)
re - writing the equation , we have
![x^{2} +ax-b](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2Bax-b%3C0)
we need to find the value of a and b for which -2<x < 4 , this means that the roots of the quadratic equation are -2<x < 4.
The formula for finding the quadratic equation when the roots are known is :
- sum of roots(x) + product of root = 0
sum of roots = -2 + 4 = 2
product of roots = -2 x 4 = -8
substituting into the formula , we have:
, which could be written in inequality form as
![x^{2} -2x-8](https://tex.z-dn.net/?f=x%5E%7B2%7D%20-2x-8%3C0)
comparing with
, it means that :
![a = -2](https://tex.z-dn.net/?f=a%20%3D%20-2)
![b = 8](https://tex.z-dn.net/?f=b%20%3D%208)