2.what is the solution of the system?
7x + 5y = 19
–7x – 2y = –16

a.(2, 1)
b.(1, 2)
c.(7, 5)
d.(–7, –2)

What is the value of x in the diagram below?

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ