Adigital camera cost 235 and the sales tax rate is 5.8 what is the total cost of the camera after tax

For which intervals is the function positive? select each correct answer. [-6, -4) (6, 8] (-4, 0) (0, 6)

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?

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827