PLEASE ANSWERR

Which equation represents the line of best fit?

A. y= 10x + 45
B. y = x + 45
C. y = −10x+ 45
D. y = 45x + 10

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Using the graph below, select all statements that are true. a. f(0.6)=0 b. f(-3.2)=-3 c. f(5.1)=5 d. this is the graph of the greatest integer function. e. this graph is one-to-one.

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.