Which graph best represents the equation 9x - 3y =15? A. B. C. D.
2 answers:
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Answer:
m(∠C) = 18°
Step-by-step explanation:
From the picture attached,
m(arc BD) = 20°
m(arc DE) = 104°
Measure of the angle between secant and the tangent drawn from a point outside the circle is half the difference of the measures of intercepted arcs.
m(∠C) =
Since, AB is a diameter,
m(arc BD) + m(arc DE) + m(arc EA) = 180°
20° + 104° + m(arc EA) = 180°
124° + m(arc EA) = 180°
m(arc EA) = 56°
Therefore, m(∠C) =
m(∠C) = 18°
<u>On the first part, just replace the variables with the given number to check. </u>
1) 34 + 12 = 46 → <u>Correct</u>
2) 22 - 9 = 14 → <u>Incorrect</u>
3) 6 * 9 = 54 → <u>Correct</u>
4) 39 ^ 3 = 13 → <u>Correct</u>
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<u>On the second part, simply change the symbols. Like this:</u>
5) 7 + k = 11 ⇒ 11 - 9 = k
<u>K = 2 </u>
6) p - 24 = 13 ⇒ 13 + 24 = p
<u> p = 37 </u>
7) b - 16 = 7 ⇒ 7 + 16 = b
<u>b = 23</u>
8) + m =
⇒
-
= m
<u>m = 13/30</u>
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<em><u>Hope this helps!</u></em>