Which system of equations could you use to determine where the paths intersect? Y = 0 and y = -0.12(x - 20)2 y = 0.8x and y = -0.12x2 + 20 y = 0.8x and y = -0.12(x - 20)2 y = 0.8x + 8 and y = -0.12x2 + 20

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

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?

How to solve a simultaneous equation involved with fractions?