Evaluate the powers of 3 to find each value.
What is the value of 3^-2
What is the value of 3^0
What is the value 3^1
What is the value of 3^3
Pls help

What is the equation of a vertical line passing through the point (−5, −1)? y = −5 y = −1 x = −5 x = −1

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 can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation