Each figure shows a triangle with one or more of its medians, help me pleaseee ASAP:(

19. RE = 12

20. EB = 24

Step-by-step explanation:

19. Determination of RE

HE = 24

RE =?

From the diagram given above, we can conclude that:

HE = 2RE

24 = 2RE

Divide both side by 2

RE = 24 / 2

RE = 12

20. Determination of EB.

YB = 12

EB =.?

From the diagram given above, we can conclude that:

EB = YB

EB = 2 × 12

EB = 24

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.