Drag the tiles to the correct boxes to complete the pairs. Match each system of equations to the diagram that represents its solution. 5x + 12y + z = 10 2x + 5y + 2z = -1 x + 2y − 3z = 5 5x − 2y − 3z = 0 x + y = 5 2x − 3z = 4 x + y − 10z = -4 x − 7z = -5 3x + 5y − 36z = -10 x + y + z = 10 -4x − 4y − 4z = -40 2x = 20 − 2y − 2z

What is (28 + 7 + 6 + 3) x 1/2 show your work

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?