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.
sin(x) will only give numbers in the range from -1 to 1 and not a number of 57.
140 + x = 3 * (100 - x)
140 + x = 300 - 3x
140 + 4x = 300
4x = 160
x = 40
inna gave liz 40 pens.