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

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4

perimeter of the base times height

step-by-step explanation: