Answer:
x=2/3 or 0.6666
Step-by-step explanation:
(28 * x) -42 = 154
28x - 42 = 154
28x = 196
the unknown number is 7
Answer:
230.9 ft
Step-by-step explanation:
The side ratios of a 30°-60°-90° triangle are 1 : √3 : 2
In ∆ABC, BC = AB/√3 ≈ 115.47 ft
In ∆ABD, BD = AB√3 ≈ 346.41 ft
Then the length CD is ...
346.41 ft -115.47 ft = 230.94 ft
The distance CD is about 230.9 ft.
See attachment for the answer: