Use the image to the right for this question:

Find both the exact and approximate value of AC
Use your approximate answer from part a to find the side length of x.

x=4

Step-by-step explanation:

Use SohCahToa

sin 45 = 7/h

h = 7sin45

use the calculater

h = 4.949747468 = 5

do it again for the next triangle

sin 55 = 5/x

x = 5sin55

use the calculater

x = 4.095760221 = 4

2

step-by-2step explanation:

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225