An airplane is at 32,000 feet above sea level and descends at an average rate of 1,000 feet per minute. how many minutes will it take for the airplane to land at an airport 3,000 feet above sea level ?

An airplane is at 32,000 feet above sea level and descends at an average rate of 1,000 feet per minute. How many minutes will it take for the airplane to land at an airport 3,000 feet above sea level ?

It will take 29 minutes for it to land 3,000 feet above sea level

cause 32-3=29

1 min.=1000f

32min=32000f (exactly at sea level)

32000-3000=2900

2900=29 min

it will take 29 minutes

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.

yes the data was not prsented

step-by-step explanation: