Answer:
3/4
Step-by-step explanation:
Answer: 3/4
In decimal form, 2/5 is .4
In decimal form, 7/8 is .875.
In decimal form, 3/4 is .75.
In decimal form, 15/16 is .9375.
In decimal form, 1/3 is .3333.
In decimal form, 3/8 is .375.
3/4 is the only one in between.
Using the law os cosines formula b^2 = a^2 + c^2 - 2*a*c*cos(B)
a = 17, b = 8, c = 16
8^2 = 17^2 + 16^2 - 2*17*16* cos(B)
64 = 289 + 256 - 544 * cos(B)
544*cos(B) = 289 + 256 - 64
544 * cos(B) = 481
cos (B) = 481/544
B = arccos(481/544)
B = 27.8 degrees
