Answer:
x=6, x=0
Step-by-step explanation:
+
= 25
+
= 25
x=6, x=0
Yes or no? Thanks!!!
2 answers:
It is not a function if one of the xs has 2 ys associated with it. The graph below shows the definition rather clearly. The red parabola opens right. There is a blue vertical line that shows the 2 y values that the red graph has.
the green line is a function. Each x has only 1 y associated with it.
Answer
The red line is not a function.
The blue line shows why not (x = 5 has 2 y values).
The green line is a function.
Your question is a function.
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Answer:
Given A triangle ABC in which
∠C =90°,∠A=20° and CD ⊥ AB.
In Δ ABC
⇒∠A + ∠B +∠C=180° [ Angle sum property of triangle]
⇒20° + ∠B + 90°=180°
⇒∠B+110° =180°
∠B =180° -110°
∠B = 70°
In Δ B DC
∠BDC =90°,∠B =70°,∠BC D=?
∠BDC +,∠B+∠BC D=180°[ angle sum property of triangle]
90° + 70°+∠BC D =180°
∠BC D=180°- 160°
∠BC D = 20°
In Δ AC D
∠A=20°, ∠ADC=90°,∠AC D=?
∠A + ∠ADC +∠AC D=180° [angle sum property of triangle]
20°+90°+∠AC D=180°
110° +∠AC D=180°
∠AC D=180°-110°
∠AC D=70°
So solution are, ∠AC D=70°,∠ BC D=20°,∠DB C=70°
