Find the other endpoint of the line segment with the given endpoint and mid point.
1. endpoint: (-1, 9), midpoint: (-9, -10)
2. endpoint: (2, 5), midpoint: (5, 1)
3. endpoint: (9, -10), midpoint: (4, 8)
4. find the point that is one-fourth of the way from (2, 4) to (10, 8).

What is the value of 1/3× + 7x, when x =5

Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.

Acompany that makes? hair-care products had 5000 people try a new shampoo. of the 5000 ? people, 35 had a mild allergic reaction. what percent of the people had a mild allergic? reaction?