Answer:
B. Straight angles
Step-by-step explanation:
When combined, they form a straight line. They are also supplementary angles. When added together, they = 180 degrees.
Answer:
x = -3 +
, -3 - 
Step-by-step explanation:
Step 1: Isolate <em>x</em>'s
2x² + 12x = 7
Step 2: Factor
2(x² + 6x) = 7
x² + 6x = 7/2
Step 3: Complete the Square
x² + 6x + 9 = 7/2 + 9
(x + 3)² = 25/2
Step 4: Solve for <em>x</em>
√(x + 3)² = √25/2
x + 3 = 5√2/2
x = -3 ± 5√2/2
Answer:
Step-by-step explanation:
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2384598 + 6000000 = 8384598
10 = Ten
100 = One Hundred
1,000 = One Thousand
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10 = 10^1
100 = 10^2 = 10 x 10
1,000 = 10^3 = 10 x 10 x 10