The table below gives the dimensions of a bridge and a scale model of the bridge. Find the scale factor of the model to the real bridge.
Write your answer as a fraction in simplest form.
Model
Bridge
Width (feet)
6
21
Height (feet)
8
28
Length (feet)
10
35
Scale factor: 0
음
Х
5
?

i think it is 70

step-by-step explanation:

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92