Answer:
BC ≈ 19.4 cm
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos71° = 
= 
= 
( multiply both sides by BC )
BC × cos71° = 6.3 ( divide both sides by cos71° )
BC = 
≈ 19.4 cm ( to 3 significant figures )
(-3)-(-6)×(-9)
Simplify your equation to make it look neater.
(-3)+(6)×(-9)
Combine like terms.
(-3+6)×(-9)
Simplify.
(3)×(-9)
Simplify. Remember, a negative times a positive is ALWAYS a negative.
-27
~Hope I helped!~
The answer would be B check the picture for work.
In order from least to greatest, it's listed as:
0.015, 0.105, 0.15, 0.501.
0.015 is the lowest number because it is the farthest from being a whole. It starts with .0, whereas the rest of them have a number higher than 0 after the period.
