Iused elimination to solve this system of equations and found out that y = 1. what does x equal?

-5x + 13y = -7

5x + 4y = 24

a.3

b.-4

c.4

d.-5

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

Which of the following are accepted without proof in a logical system? check all that apply.

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)