Answer:
C
Step-by-step explanation:
<span>The general form of quadratic equation with real
coefficients and leading coefficient 1, has x = -bi as a root
=> x = <u>-b + </u></span><u>√ b^2 – 4 ac</u><span>
2a
It is also written as:
=> ax^2 + bx + c = 0
Quadratic equation involves unknown numbers which is x, the numbers which a, b
and c are called coeffecients.
There are also quadratic factorization where you factor the polynomial give to
be able to get the value of the equation.</span>
<h2><u>
PROPORTIONAL EQUATION</u></h2><h3>Exercise</h3>
Apply the means-extremes property of proportions: this allows you to cross multiply:


Apply the distributive property:



Add 24 to both sides:


Substract 3x to both sides



<h3><u>Answer</u>. The value of x = 24.</h3>

Differentiate both sides wrt
:

By the chain rule, we get


Solve for
:


82% of 503 is 412.46 hope this helps