Two airplanes are approaching the airport tower at the same altitude. radar shows that plane a is 20 miles due east of the tower and that plane b is 22 miles at 15° north of east. (see the drawing provided above).



how far apart are the two planes? round to the nearest hundredths.

answer: miles

answer:

c. 4.47

step-by-step explanation:

the distance between two points is found by

d = sqrt( (x2-x1)^2 + (y2-y1)^2)

    = sqrt( (-1--3)^2 + (5-1)^2)

    = sqrt( (-1+3)^2 + (5-1)^2)

    = sqrt( (2)^2 + (4)^2)

  = sqrt(4+16)

  = sqrt(20)

4.472135955

rounding to the nearest hundredth

4.47

answer: a)energy used in may in joules in month of may is 1,440,000,000 joules.

b) average power use in watts is month of may is 538 watts.

c)oil needed to generate the electricity we​ use in month of may liter is 12 l or 3.17 gal

step-by-step explanation:

energy used in may = 400 kilowatt-hour = 400,000 watt-hour

1 hour = 3600 seconds

1 joule = watt × seconds

a) energy used in may in joules :

400,000 watt-hour=

energy used in may in joules in month of may is 1,440,000,000 joules .

b) average power use in watts.

time = 2,678,400 seconds

( may = 31 days,1 day = 24 hours,1 hour = 3600 seconds)

average power use in watts is month of may is 538 watts.

c) oil needed to generate the electricity we​ use

  of energy is generated 1 liter of oil

then of energy will be generated by:

of oil

1 liter = 0.264172 gal

12 liter of oil =

oil needed to generate the electricity we​ use in month of may liter is 12 l.

oil needed to generate the electricity we​ use in month of may gallons is 3.17 gal