Answer:
it is d inverse
Step-by-step explanation:
Answer: 70 meters.
Step-by-step explanation:
Observe the figure attached.
The distance between the walls is:

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Both triangles are right triangles. Therefore, you can calculate the distance between the walls as following:
- Calculate the distance AD:

- Calculate the distance AE:

Therefore the distance between the walls is:

Answer:
9
Step-by-step explanation:
Answer:
1/3
Step-by-step explanation:
The formula for computing the sum of an infinite geometric series is
where r is between -1 and 1 and
is the common ratio, and
is the first term of the series.
So let's plug in:


I multiplied bottom and top by 10.
I divided top and bottom by 3.
The sum is 1/3.
The students that are correct are Jake , and Liu because 51, and 21 are composite.
Hope this helps!