The augmented matrix below represents a system of equations.[-1 1 2 7 -3 2 1 4 2 1 1 7 ] Which matrix results from the operation R1<-->R2?

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?

Which of the following are arithmetic sequences? check all that apply. a. 0.3, 0.6, 0.9, 1.2, 1.5, b. 2, 3, 6, 11, 18, c. 150, 147, 144, 142, d. 2, 4, 9, 16, 25,