A: When they were distributing the 2, they didn’t distribute it to the 5. The correct answer would be 6x + 10
B: They didn’t distribute the 3 to the -3. The answer should be 6x^2 - 9
C: They didn’t distribute the -3 to the -4. The correct answer should be -9x + 12
D: The -20 should be a positive 20 because -4 x -5= 20. The correct answer should be -16x + 20
E: The 12 should be a -12 because -2 x 6= -12. The correct answer should be -8x^2 -12
F: They didn’t distribute the -9 correctly. The correct answer should be -36x^3 + 45x -54
Hope this helps!
-Grace
Answer:
(-5,7)
Step-by-step explanation:
When we move from (-5, -8) to (-7, -6), we move -2 units across the x axis to get from the 1st to 2nd point, and we move -2 units across the y axis to get from the 1st to the 2nd point. So, just subtract -3 by 2 and 9 by 2 to get -5 and 7.
Answer: The speed is 105 miles/ hr and the direction of the train would be East if the girl is the frame of reference.
Step-by-step explanation:
Since we have given that
Speed of train = 100 miles per hour
Speed of girl = 5 miles per hour
Since the girl is moving towards the back of train.
So,it means train and girl are moving in opposite direction.
So, Relative speed would be
Hence, the speed is 105 miles/ hr and the direction of the train would be East if the girl is the frame of reference.
Hope you could get an idea from here.
Doubt clarification- use comment section.
Answer:
first explain what you need help with specifically then maybe people can help, to bland of a question
