Answer:
90
Step-by-step explanation:
- When converting from centimetres to millimetres you must multiply by ten.
- 9cm x 10 = 90mm
Answer:
33 ¹/₃ seconds
Step-by-step explanation:
Since the dog is 30 - 24 = <em>6 m/s faster than the cat</em>, that means that the dog is <em>6 meters closer to the cat each second</em>.
So, that gap will close in 200/6 = 33 ¹/₃ seconds.
Opposite reciprocal of each other
So two perpendicular liens would maybe have the slopes:
3 and -1/3
