Solve the system algebraically. 3x - 2y - 1 = 0 y = 5x + 4 what is the solution? {(-9/7,-17/7)} {(9/7,17/7)} {(9/7,-17/7)}

Will give brainliest series to sigma notation write the following series in sigma notation. 6+10+14+18+22+26+30 example image shown 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?

Which expression is equal to (f+g)(x)?