Answer:
1,2,4,8
Step-by-step explanation:
1 x 40 = 40
1 x 72 = 72
2 x 20 = 40
2 x 36 = 72
4 x 10 = 40
4 x 18 = 72
8 x 5 = 40
8 x 9 = 72
Answer:
A
Step-by-step explanation:
Answer:
Step-by-step explanation:
1. 10² + 7² = x²
149 = x²
x = √149
2. x² + 19² = 21²
x² = 21² - 19² = 80
x = √80 = 4√5
3. x² + 16² = 27²
x² = 27² - 16² = 473
x = √473
4. 5.3² + 12.8² = x²
191.93 = x²
x = √191.93
5. 9² + 20² = x²
481 = x²
x = √481
6. 31 = x + 2√(19²-17²) = x + 2·6√2 = x + 12√2
x = 31 - 12√2
Answer:
C
Step-by-step explanation: