Answer:
13
Step-by-step explanation:
All the lengths in triangle ADE are twice those in similar triangle ABC. So ...
x-1 = 2(6)
x = 13
Answer:
t = 130s
Step-by-step explanation:





If the speed signal sent was actually less, meaning that it would take more time to signal arrives from Earth to Mars. The lower the speed, the higher the time.
Yi forgot two factors of 63, which are 3 and 21.
This would make the greatest common factor 21.
Answer:
b 375
Step-by-step explanation: