Trapezoid A B C D is shown. Diagonals are drawn from point B to point D and from point A to point C and intersect at point E. If quadrilateral ABCD is an isosceles trapezoid, which statements must be true? Select three options BC ∥ AD BD ⊥ AC BA ≅ CD BE ≅ ED ∠CBA ≅ ∠BCD

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation:

41*67/2=1373.5

step-by-step explanation:

i just used a calculator

if x = 1, then the answer is 3.5

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.