PLEASE HELP I NEED ANSWER ASAPand brainliest to first good answer Heidi is designing a two-lane running tra ck for an athletic cl u b. The tra ck will go aro u n d
a rectangle that will have an area of 3600 m2.
The length and width of the rectangle mu s t
be whole nu m b e rs of metre s . a) Draw five possible tracks.
b) Which track is the longest?
c) Which track is the shortest

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.

cut 138 centimeters off

step-by-step explanation:

250-112 = 138

76%

step-by-step explanation:

24% are dogs and the remaining is 76% because 100-24=76

step-by-step explanation:

divide, then simplify your answer.

1. make -15.66 ÷   5.8 a fraction. then divide.

2. simplify.  

3. final answer.