the equation of the parabola is given as 
. D
<h3>How to find the parabola</h3>
Given the focus(6,2) and the directrix, y = 0
Use the formula
= (y - 0)
Find the square of both sides, square root is removed from the side with it and square added on the other side
Expand the expression and bring all terms to one side
= 
Collect like terms
Make 'y' the subject of the formula
Divide through by 4 and substrate 4 from 40 to give a perfect quadratic equation
Divide factor by 4 to give 1
Simplify the expanded quadratic equation
, we have 
Then insert in place into previous equation
Thus, the equation of the parabola is given as
Learn more about a parabola here:
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Work is done when a force is applied to an object through a distance. ... The object will either speed up or slow down, resulting in a change in its kinetic energy (seen in Figure 1), or it will have an altered potential energy if, for example, it was lifted a certain height under the force of gravity.Jan 31, 2020
dissociation of proton from the acid depends upon the central atoms's electronegativity
More is the electronegativity of halogen ⇒ more is its pull on the oxygen ⇒ easier will the bond breakage of O-H ⇒ higher the acidity
In terms of E.N :
Cl > Br > I
so HClO₃ is highest acidity with the highest Ka value
A. covalent compounds are the combination of two or more non metals
Sodium is a group 1 element, so it forms a cation with a +1 charge by losing one electron, so it will become Na+
