Which of the following is true about the median of a trapezoid. a. The median connects the endpoints of the bases of a trapezoid.
b. The length of the median is half the sum of the lengths of the bases.
c. The length of the median is half the difference of the lengths of the bases.
d. The median connects the midpoints of the bases of a trapezoid.

b

Step-by-step explanation:

The midsegment (median) of a trapezoid connects the midpoints of the non parallel sides and is half the sum of the lengths of the bases.

c. 4 1/4 pounds

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3