Afarm has chickens and cows. you ask the farmer how many chickens he has, and how many cows he has. the farmer tells you he has 28 healthy animals, and they have a total of 64 legs. how many of his animals are cows.

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

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.

Drag each expression to the correct location on the solution. not all expressions will be used. consider the polynomial 8x + 2x2 - 20x - 5. factor by grouping to write the polynomial in factored form.