Answer:
BC ≈ 1.71
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos70° = 
= 
= 
Multiply both sides by 5
5 × cos70° = BC , thus
BC ≈ 1.71 ( to the nearest hundredth )
Answer:
Negative 4
-4
Step-by-step explanation:
x+5= -23
-x+y= -1
6y= -24
-24÷6= -4
The answer to the question is
12. c
13. d
Answer:
7.2
Step-by-step explanation:
Length AB is the difference of the horizontal dimensions shown:
AB = GF = EF -EG
AB = 12 -7 = 5
The triangles in the figure are all similar, so we have ...
DE/DC = CB/AB
DE/12 = 3/5
DE = 12(3/5) = 7.2
Answer:
7.95km
Step-by-step explanation:
