If the following systerm of equations was written as a matrix equation in the
a=[a c]
[b d]
form ax =c and matrix a was expressed in the form, find the value of a-b+c+d
2x + 8y=7
4x- 2y= 9

What is this inequality notation? t is less then or equal to 2

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?