4.4.4.4.4 = 45 Simplify the following expressions. 1. 64.62 = 2. y4y3 4. tº . x10 = 5. b3.b 7. 3a5. 3a2 = 8. 5-* -. 10. 9m. 9m = 11. ym.​

Use a calculator to verify that σ(x) = 62, σ(x2) = 1034, σ(y) = 644, σ(y2) = 93,438, and σ(x y) = 9,622. compute r. (enter a number. round your answer to three decimal places.) as x increases from 3 to 22 months, does the value of r imply that y should tend to increase or decrease? explain your answer. given our value of r, y should tend to increase as x increases. given our value of r, we can not draw any conclusions for the behavior of y as x increases. given our value of r, y should tend to remain constant as x increases. given our value of r, y should tend to decrease as x increases.