A random sample of the records of single births was selected from each of four populations. The weights (grams) of the babies at birth were recorded. Do these data provide sufficient evidence to indicate that the four populations differ with respect to average birth weight

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?