Solve the system by substitution.
- 3x + y + 2z = -13
7x + 2y - 6z=37
x-y + 3z= -14

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Choose the linear inequality that describes the graph. the gray area represents the shaded region. a: y ≤ –4x – 2 b: y > –4x – 2 c: y ≥ –4x – 2 d: y < 4x – 2

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f