Suppose you have a big vat of balls and that 70% of the balls are green and 30% of the balls are red. Suppose you randomly select a ball, record the color, then put the ball back, and repeat the process. (a) What is the probability that the ?rst red ball you encounter will be the third ball you pull from the vat?

Ac contractor is building a new subdivision outside of the city. he has started work on the first street and is planning on the other streets to run in a direction parallel to the first. the second street will pass through (-2,4) find the equation of the location of the second street in standard form. a.2x+y=2 b. x-y=2 c.2x+y=2 d.x+y=2

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

50 ! pls ! 12.  building codes regulate the steepness of stairs. homes must have steps that are at least 13 inches wide for each 8 inches that they rise.

a. discuss how to find the slope of the stairs.
b. describe how changing the width or height affects the steepness of the stairs.