An automobile manufacturer claims that its van has a 51.5 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the MPG for this van since it is believed that the van has an incorrect manufacturer's MPG rating. After testing 230 vans, they found a mean MPG of 51.7. Assume the standard deviation is known to be 2.2. A level of significance of 0.05 will be used. State the hypotheses.

Find the vertex of the function given below y=x^2-6x+1

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

Which of the following points is collinear with (-2,1) and (0,3)