Aset of pets consists of four elements: dog, cat, bird, and lizard. which of the following is appropriate use of set notation to define this set?
a. pet= {dog, cat, bird, lizard}
b. p= {bird, cat, dog, lizard}
c. p= (dog, cat, bird, lizard)
d. p={dog},{cat},{bird},{lizard}

answer: a clock

step-by-step explanation:

answer: there are 453.592 grams in a pound.

what is the original number? you forgot to add it.

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."