Answer:
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Step-by-step explanation:
$7.9
Answer:
18
Step-by-step explanation:
Given
x - 1 = 2 ( add 1 to both sides )
x = 3
Then
2x² = 2(3)² = 2 × 9 = 18
Answer:
A. parallel lines
You can also use the app desmos to help you graph equations.
Complementary angels add up to 90°
so x+18°=90°
so x=90-18=72°