Answer:
BC ≈ 12.6 m
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan31° = = = ( multiply both sides by BC )
BC × tan31° = 7.6 ( divide both sides by tan31° )
BC = ≈ 12.6 m ( to 3 sf )
if an ordered pair is a solution, it should satisfy the equation.
see the first option
, if you put $x=4$ and $y=12$
you'll get $12=12$ which is true.
now the last option, $y=8-x$ put $x=4$ and $y=12$
$12=8-4\implies 12\ne4$ thus it is not a solution.
So option 4 is correct
Answer:
Oki, mizuki here to help!
Hi there user, looks like you need help!
Anyways, option B is the correct answer!
Step-by-step explanation:
How to find average speed: distance/time
Since the graph shows 480 meters in 6 seconds, option B should be the correct answer!
Hope this helped!
area of circle =22/7×4=12.56