For the quadrilateral, abcd e and f are midpoints of sides
ad
and
bc
respectively. ab = 15, bc = 29, cd = 34, ad = 11, and
ef = 31. find the distance between midpoints of the other two sides, if the diagonals of the quadrilateral are perpendicular.

it is a very difficoult one

the correct answer is you spend $55.78 more in a brand store that buy ing in a normal store.

step-by-step explanation:

brand = spend   $ 135.85 total

store = spend $80.07 total

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.