An area rug in Rachel's room is shown below. A rectangle that is one hundred forty-four inches long and one hundred eight inches
1 answer:
Answer:
42 feet
Step-by-step explanation:
1) remeber how 1 foot=12 inches
we need to find "x" feet for 144 inches
so
2) cross multiply
144=12x
divide both sides by 12
12=x
so 144 inches is 12 feet, we need to do the exact same thing for the width
108=12x
9=x
the length is 12 feet and width is 9 feet
to find perimeter:
2(l)+2(w)
2*12+2*9
24+18=42
Hope this helps!
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Answer:
Step-by-step explanation:
We can start solving this problem by doing a drawing of London Eye. (See attached picture).
From the picture, we can see that the tourists will start at the lowest point of the trajectory, which means we can make use of a -cos function. So the function will have the following shape:
where:
A=amplitude
= angular speed.
t= time (in minutes)
b= vertical shift.
In this case:
A= radius = 67.5 m
where the frequency is the number of revolutions it takes every minute, in this case:
so:
and
b= radius, so
b=A
b=67.5m
so we can now build our equation:
which can be factored to:
You can see a graph of what the function looks like in the end on the attached picture.
