Step-by-step explanation:
angle B+angle C = 180°
= angle B= 180-79
= angle B = 101°
therefore angle A = 79°
angle D = 101°
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X= 1/4y +3
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Simplifying rational expressions will make the further calculations easier since the variables to work with will usually be smaller.
To determine that a rational expression is in simplest form we need to make sure that the numerator and the denominator have no common variables.