2 runners are racing against other. Jeri graphs a equation for each runner that shows the runner's distance from the starting line over time. The 2 equations from a system that has infinitely many solution. Describe the intersection point(s) of the lines and explain what the solution means in this situation.

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

The circumference of a redwood tree trunk is 20π ft, and it is 100 ft tall. what is the approximate volume of the redwood tree trunk? 1,000π ft3 10,000π ft3 4,000π ft3 40,000π ft3