The polynomial equation x3 – x = has exactity one positive root and exactly one negative real root. Please select the best answer from the choices provided
T or F

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?

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.

Drag the tiles to the correct boxes to complete the pairs. label each function. as even , odd, or neither.