The answer is B
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Answer:
The rational zero of the polynomial are
.
Step-by-step explanation:
Given polynomial as :
f(x) = 4 x³ - 8 x² - 19 x - 7
Now the ration zero can be find as
,
where P is the constant term
And Q is the coefficient of the highest polynomial
So, From given polynomial , P = -7 , Q = 4
Now , ![\dfrac{\textrm factor of \pm P}{\textrm factor of \pm Q}](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Ctextrm%20factor%20of%20%5Cpm%20P%7D%7B%5Ctextrm%20factor%20of%20%5Cpm%20Q%7D)
I.e
=
Or, The rational zero are ![\pm \frac{7}{4}, \pm \frac{1}{4},\pm \frac{7}{2},\pm \frac{1}{2},\pm 7,\pm 1](https://tex.z-dn.net/?f=%5Cpm%20%5Cfrac%7B7%7D%7B4%7D%2C%20%5Cpm%20%5Cfrac%7B1%7D%7B4%7D%2C%5Cpm%20%5Cfrac%7B7%7D%7B2%7D%2C%5Cpm%20%5Cfrac%7B1%7D%7B2%7D%2C%5Cpm%207%2C%5Cpm%201)
Hence The rational zero of the polynomial are
. Answer
Answer:
4.5 + 1.2 = 5.7 There are 5.7 litres of milk. 2.
Step-by-step explanation:
Answer:
![2) \: \: \frac{11}{2}](https://tex.z-dn.net/?f=2%29%20%5C%3A%20%20%5C%3A%20%20%5Cfrac%7B11%7D%7B2%7D%20)
Step-by-step explanation:
![\frac{4}{5} + \frac{18}{20} \\ \\ \frac{4}{5 \times 4} + \frac{18}{20} \\ \\ \frac{4}{20} + \frac{18}{20} \\ \\ \frac{4 + 18}{20} \\ \\ \frac{22}{20} \\ \\ \frac{11}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B5%7D%20%20%2B%20%20%5Cfrac%7B18%7D%7B20%7D%20%20%5C%5C%20%20%5C%5C%20%20%5Cfrac%7B4%7D%7B5%20%5Ctimes%204%7D%20%20%2B%20%20%5Cfrac%7B18%7D%7B20%7D%20%20%5C%5C%20%5C%5C%20%20%20%5Cfrac%7B4%7D%7B20%7D%20%20%2B%20%20%5Cfrac%7B18%7D%7B20%7D%20%20%5C%5C%20%20%5C%5C%20%20%5Cfrac%7B4%20%2B%2018%7D%7B20%7D%20%20%5C%5C%20%20%5C%5C%20%20%5Cfrac%7B22%7D%7B20%7D%20%20%5C%5C%20%20%5C%5C%20%20%5Cfrac%7B11%7D%7B2%7D%20)
you need to find one side then see what multiples are equal to your answer