7 miles per hour.
if you multiply the distance and time by 2 you get 7 miles in 1 hour, or 7 mph
Answer:
- 2 - 3i
Step-by-step explanation:
given a complex number a + bi
then the conjugate is a - bi
The real part a remains unchanged while the sign of the imaginary part is reversed.
the conjugate of - 2 + 3i is - 2 - 3i
Answer: 0
Step-by-step explanation: -6.80 + 6.80
Negative numbers act as subtracting
