An isosceles right triangle is a right triangle with congruent legs. if the length of each leg is represented by x, what algebraic expression can be used to represent the length of the hypotenuse? complete the explanation for your reasoning and enter the expression.

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

On the first of each month, shelly runs a 5k race. she keeps track of her times to track her progress. her time in minutes is recorded in the table: jan 40.55 july 35.38 feb 41.51 aug 37.48 mar 42.01 sept 40.87 apr 38.76 oct 48.32 may 36.32 nov 41.59 june 34.28 dec 42.71 determine the difference between the mean of the data, including the outlier and excluding the outlier. round to the hundredths place. 39.98 39.22 0.76 1.21

Can some one me with these questions