Answer:
please please please please show please
Answer:
That's a bit hard. Hope you can solve it!
Answer:
x = ±20
Step-by-step explanation:
Step 1: Write equation
x² = 400
Step 2: Square root both sides
x = ±√400
x = ±20
Step 3: Check
<em>Plug in x to verify it's a solution.</em>
20² = 400
400 = 400
(-20)² = 400
400 = 400
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Answer:
adjacent angle pair is ∠AOD and ∠DOB (could be any two that are next to each other)
vertically opposite angles are ∠AOD and ∠COB (also could be ∠AOC and ∠DOB
Step-by-step explanation: