What are the coordinates of point A′ if triangle ABC is rotated 90° to produce the image triangle A′B′C′?
1 answer:
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Answer:
3.14
Step-by-step explanation:
First find the circumference of the circle:
= Circumference.
=
Find the ratio of the angle in relation to the entire circle:
is what we have. So:
Use the ratio and multiply the circumference to find the length:
=
Round answer to the hundredth:
Answer:
1 hour and 42.8 minutes
Step-by-step explanation:
To answer this question let's call while it takes Jenna to clean the gutters
Let's call while it takes John to clean the gutters
h
h
t = total time
g = job = 1 (clean the gutters)
The speed of each one is:
g/ h
g/h
So:
h
Then, both together paint of gutters for each hour.
This means that it takes hours to clean the gutters together
Finally cleaning together takes 1,714 hours or also
1 hour and 42.8 minutes