In 2008, the world record for swimming the 50 meter freestyle event was 21.34 seconds. Supposing the athlete swam at a constant rate, what was his speed? Round your answer to the nearest hundredth.

2.34m/s

Step-by-step explanation:

says that he swim a distance of 50 meters in 21.34 seconds

21.34s = 50m

if we want to know how much it travels in 1 second we would have to divide by the amount of seconds both parts

21.34s = 50m

21.34s/21.34 = 50m/21.34

1s = 2.343m

if in 1 second it makes a distance of 2.343 meters this means that its speed is 2.343 meters over seconds (m/s)

we have to round to the nearest hundredth so that instead of 2.343m/s it would be 2.34m/s

what are the things "represented below"?

step-by-step explanation:

nobody can if you dont give the choices

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)