![\sqrt[3]{\frac{-27x^9}{64y^{12}}}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B%5Cfrac%7B-27x%5E9%7D%7B64y%5E%7B12%7D%7D%7D)
we take cube root separately
![\sqrt[3]{-27} =\sqrt[3]{-3*-3*-3} =-3](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B-27%7D%20%3D%5Csqrt%5B3%5D%7B-3%2A-3%2A-3%7D%20%3D-3)
We know cuberoot (x^3) is x
![\sqrt[3]{x^9}=\sqrt[3]{x^3*x^3*x^3}=x*x*x= x^3](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7Bx%5E9%7D%3D%5Csqrt%5B3%5D%7Bx%5E3%2Ax%5E3%2Ax%5E3%7D%3Dx%2Ax%2Ax%3D%20x%5E3)
![\sqrt[3]{64} =\sqrt[3]{4*4*4}= 4](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B64%7D%20%3D%5Csqrt%5B3%5D%7B4%2A4%2A4%7D%3D%204)
![\sqrt[3]{y^{12}} =\sqrt[3]{y^3*y^3*y^3*y^3}= y*y*y*y= y^4](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7By%5E%7B12%7D%7D%20%3D%5Csqrt%5B3%5D%7By%5E3%2Ay%5E3%2Ay%5E3%2Ay%5E3%7D%3D%20y%2Ay%2Ay%2Ay%3D%20y%5E4)
![\sqrt[3]{\frac{-27x^9}{64y^{12}}}=\frac{-3x^3}{4y^4}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B%5Cfrac%7B-27x%5E9%7D%7B64y%5E%7B12%7D%7D%7D%3D%5Cfrac%7B-3x%5E3%7D%7B4y%5E4%7D)
Supplier A: 5.25 per bushel and deliver fee of 3 per bushel
Supplier B: 6.50 per busher and flat delivery fee of $1500 each week
500 bushels of grain each week.
Supplier A: 5.25x + 3x = 5.25(500) + 3(500) = 2,625 + 1,500 = 4,125
Supplier B: 6.50x + 1500 = 6.50(500) + 1500 = 3,250 + 1,500 = 4,750
Supplier B would cost more if the company buys 500 bushels of grain per week.
Answer:
- 8
Step-by-step explanation:
The common difference d between consecutive terms is
d =
-
, that is
d = - 4 - (- 2) = - 4 + 2 = - 2
To obtain the next term subtract - 2 from - 6
next term = - 6 - 2 = - 8
Given:


To verify:

Solution:
We have,


Now,



...(i)
And,



...(ii)
From (i) and (ii), it is clear that

Hence verified.
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