You have 140 lb of clay to use for making bowls and vases you need 5 pounds of clay for each bowl in 4 pounds for each vase right and inequality describing the possible numbers of bowls and vases that you can make

The equation would be 5b+4v=140. B=#of bowls and V=#of vases

140 divided by 2 =70

70 divided by 5 equals 14

70 divided by 4 = 17 you would be left with 2 lbs of clay

3. parallelogram

step-by-step explanation:

we turn each of our sides into direction vectors

ab=b-a=(3 - 7, 1 - 0) = (-4, 1)

bc=c-b=(1,6)

cd=d-c=(4,-1)

da=a-d=(-1,-6)

we see how the opposite sides have negated direction vectors; this is characteristic of a parallelogram.   we have congruent sides ab=cd and bc=da with unequal lengths because 1^2+6^2 is different from (-4)^2+1^2.   so it's not a square or a rhombus.  

we check the dot product of direction vectors of adjacent sides.   we have

ab dot bc = -4(1) + 1(6) = 2

that's not zero so the sides are not perpendicular.   we've ruled out rectangle.

the direction vectors indicate two pairs of congruent parallel sides, so we choose parallelogram over trapezoid.

fwms@lil_ben06

step-by-step explanation: