Answer:
No, the student is not correct. The correct expression is 9(n+13).
Step-by-step explanation:
"9 times the sum of a number and 13" means you must multiply 9 by the sum, not just by the number. 9n + 13 would be "the sum of 9 times a number and 13." Slightly different wording.
Answer:
65, 90, 30, 24(in order abcd)
Step-by-step explanation:
The sum of all angles in a triangle is 180 degrees, so knowing this, you should be able to get all of them.
1) x+65+50 = 180, so x= 65
2)x+34+56 =180, so x= 90
3)90+3x=180, so x=30
4)90+66+x=180, x=24
The answer to your question would be
m=100d+200
why?
Well it took her 2 days to drive 200 mile so she drives 100 miles per day.
since she is already gone 200 miles you just add 100 times the days it takes.
Hope this helps
Hope this helps if not please leave a comment and tell me what don’t you seem to understand.
Answer:
[-2; 1 ] is the new column vector
Step-by-step explanation:
See explanation in the attachment.
