Answer:
x² = 2x - 1
Step-by-step explanation:
x² + 1 = 2x
→ Minus 1 from both sides
x² = 2x - 1
Answer:
20
Step-by-step explanation:
so we know x+40=3x because opposite angles are congruent so if you solve it out you get x=20
Answer:
Median = 12.5
Step-by-step explanation:
Median is the middle number of the data set from least to greatest.
Reorder the set from least to greatest:
2, 5, 9, 10, 15, 20, 20, 60
Median = (10+15)/2 = 12.5