base, b = 45m
angle of elevation, aoe = 82deg
height at 86th floor, h1
height above 86th floor, h2 = 123m
total height, h = h1 + h2
using
tan (aoe) = h1/b
=》 h1 = tan (aoe) × b = tan 82 x 45 = 320.2
h = h1 +h2 = 320.2 + 123 = 443.2m
Answer:
cos P = 71.09
Step-by-step explanation:
cos = 
cos P = 
cos P = 0.324
cos-1 of 0.324 is 71.09
cos P = 71.09
Answer:
y = 
Step-by-step explanation:
Given
3x + 2y = 6 ( subtract 3x from both sides )
2y = 6 - 3x ( divide both sides by 2 )
y = 
The should be 158 ways, because 9*8+8*7+6*5=158.
185 is the sum of the first part if the question