Answers: (B) (2, -1) and (D) (5, 2)
<u>Step-by-step explanation:</u>
Inverse is when the x's and y's are swapped
Given: (-2, 5), (-1, 2), (0, 1), (2, 5)
Inverse: (5, -2), (2, -1) (1, 0), (5, 2)
Step-by-step explanation:
- 3x-12x=24-9x
- -9x=24-9x
- -9x+9x=24
- 0=24
It has no solution
Answer:
The line AB, with A(Ax, Ay), B(Bx, By) and midpoint M(Mx, My) satisfying:
Ax + Bx = 2Mx
Ay + By = 2My
=>
2 + Bx = 2*1
5 + By = 2*2
=> Bx = 0
=> By = -1
=> B(0, -1)
Hope this helps!
:)
Answer:
Eastbound train: 95 miles per hour
Westbound train: 105 miles per hour
Step-by-step explanation:
Let:
- e = speed of the eastbound train
- w = speed of the westbound train
The eastbound train travels 10 miles per hour slower than the westbound train
So e = w - 10
Every hour, the distance between the two trains is the sum of the values.
(w - 10) + w = distance apart in 1 hour
5(w - 10 + w) = distance after 5 hours
Solve:
- 5(w - 10 + w) = 1000
- 5(2w - 10) = 1000
- 10w - 50 = 1000
- 10w = 1050
- w = 105
The westbound train is 105 miles/ hour.
The eastbound train is 95 miles per hour
-Chetan K
I think it might be 40 have you tried
