Answer:x=6
Step-by-step explanation: Remove the radical by raising each side to the index of the radical
Answer:
speeds above 343 m/s
Step-by-step explanation:
the faster you go the faster the supersonic
Answer:

Step-by-step explanation:
Theoretically, there is not square root of neither 13 nor a negative number so the special symbol is used to represent the square root of a number.
Answer: -2v-20
Step-by-step explanation: -2 times v is -2v
and -10 times -2 is -20.