The speed of a stream is 4 miles per hour. a boat travels 50 miles upstream in the same time it takes to travel 100 miles downstream. what is the speed of the boat in still water?

What are the soultion(s) to the quadratic equation 40- x^2=0

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

What is the y intercept of f(x)=(1/2)^x?