Let x = 2.5 x 100 and y = 3.48 x 100. aFind the arithmetic mean of x and y. Give your answer in the
form a x 10' where 1 sa< 10 and ke Z.
b Give your answer to part a correct to the nearest million.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Which two transformations are applied to pentagon abcde to create a'b'c'd'e'? (4 points) translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the x-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the y-axis translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the y-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the x-axis

Aadc is formed by reflecting aabc across line segment ac, as shown in the figure. if the length of ac is 4 units, the area of aadc is square units.