Answer: 42°
<u>Step-by-step explanation:</u>
HJ is an angle bisector of ∠IHK so
∠IHJ ≅ ∠KHJ ⇒ m∠IHJ = m∠KHJ
3a + 6 = 5a - 18
6 = 2a - 18
24 = 2a
12 = a
∠IHJ = 3a + 6
= 3(12) + 6
= 36 + 6
= 42
The denominator in each term of the series is a square number, but neither

nor

are squares. So none of (1), (2), and (4) can be correct. The answer must be (3).
Answer:
D
Step-by-step explanation:
The y axis is the vertical axis; the one going up and down.
A reflection means that a point is an equal distance away from its reflector as the basis was.
A was a reflection across the line y=x.
B was a reflection across the x axis with a 90 degree rotation.
C was a reflection across the x axis.
That leaves D.
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