If the foot length of women follows a normal distribution with a mean of 23 cm, and 81.5% have a foot length between 20 cm and 29 cm, what is your estimate of the standard

deviation of the heights in this population?

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp

Are the corresponding angles congruent? explain why or why not.