Complete the point-slope equation of the line through (-2,6)(−2,6)left parenthesis, minus, 2, comma, 6, right parenthesis and (1,1)(1,1)left parenthesis, 1, comma, 1, right parenthesis. Use exact numbers.

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 equivalent to 8(k + m) − 15(2k + 5m)?

Find the volume of the described solid. the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x. a) 441b) 147c) 864d) 882