Serena parachutes from a plane at a height of 20,000 ft above sea level. several minutes later, she notes from an instrument on her wrist that she had dropped 15,000 ft. how far above sea level is she now? 5000 ft –5000 ft –15,000 ft 10,000 ft

5.000ft

Step-by-step explanation:

Since it fell from 20,000ft, and then I observe that its object fell 15,000, 20,000-15-000 = 5,000, it is 5000ft away from sea level

the forst and 3rd

step-by-step explanation:

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet