k = 13 is the value of k in quartic equation.
What does the term "quartic equation" mean?
An equation of the fourth degree, often known as a quartic equation, is one that reduces a quartic polynomial to zero. in which a 0. A quartic function's derivative is a cubic function.
Let α = 7x
β = 6x
α + β = 7x + 6x = k/3 ............1
13x = k/3
αβ = 7x × 6x = 14/3
42x² = 14/3
x² = 14/3 × 42
x² = 1/9
x = 1/3
now putting value of x in 1
7/3 + 6/3 = k/3
1/3( 7 + 6 )= k/3
k = 13
Learn more about quartic equation
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<span> sqrt (2160x8)(60x2) =
12 x4 • sqrt(15)
</span>
<span> 12 x4 • sqrt(15) </span>
Answer:
4%
Step-by-step explanation:
(|600-625|)/625 x 100
=4%
It is given in the question that

For th first inequality, we divide both sides by 2, and for second, we subtract 3 to both sides, that is

So the required inequality is
![(- \infty, -9] U (2, \infty)](https://tex.z-dn.net/?f=%28-%20%5Cinfty%2C%20-9%5D%20U%20%282%2C%20%5Cinfty%29)
Correct option is B