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:
420
Step-by-step explanation:
Answer:f ( x - 1 ) = 3x² - 5x - 7
Step-by-step explanation:
Answer:
Step-by-step explanation:
-5+-15= -20
4+15= 19
-20+19
-1
