When you factor the equation...
r^2-4r-77
r^2+7r-11r-77
r(r+7)-11(r+7)
(r-11)(r+7) so each parenthetical term is a dimension.
Note that r>11 though for any possible real solution.
Yes, the table represents a function.
None of the independent (x) values are repeated and each one has a corresponding (y) value.
If you had a repeated (x) value in the table, it would not represent a function.
<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>
The Reference angle for 302 degree is 58 degree.
<h3 /><h3>What is Reference Angle?</h3>
The acute angle formed by the terminal arm or terminal side and the x-axis is known as the reference angle.
There is always a positive reference angle.
The reference angle is, in other words, the angle formed by the terminal side and the x-axis.
Reference angle is given by
Ф = 360° - Given angle
Ф = 360° - 302°
Ф = 58°
Option A is right answer.
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Mean -to-MAD ratio is the division of the Mean by the Mean Absolute Deviaion (MAD). For the set 1, mean / MAD is 10.3 / 1. 6 = 6.4375; and for the set 2, Mean / MAD is: 12.7 / 1.5 = 8.467. This is a measure of disperssion of a set of values. MAD is calculated as the sum of the absolute differences of the values and the mean.