An automobile manufacturer claims that their van has a 40.3 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the MPG for this van. After testing 190 vans, they found a mean MPG of 51.4. Assume the population standard deviation is known to be 1.7. Required:
Is there sufficient evidence at the 0.05 level to support the testing firm's claim

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation:

just sum

10 + 10 = 20

hence, the required result is

step-by-step explanation:

suppose we have two matrices a and b

we will assume the two matrices

we have to compute b-a which means subtracting corresponding elements of a from b.

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-1

step-by-step explanation: