39. Rectangle A has a base of 20 ft and a height of 13 ft.
Rectangle B, a similar rectangle, has a height of 6 ft.
How long is the base of rectangle B?
13 ft

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25