A radio telescope array is in an unpopulated desert region. The array covers a rectangular area that is one fourth square kilome
ter. The array is one twelfth kilometer wide. How long is the array? The array is [blank] kilometers long.
1 answer:
Answer:
3 km
Step-by-step explanation:
The area of a rectangle is given by the formula ...
A = LW
Filling in the given information, we can solve for the length.
1/4 = L·(1/12)
Multiplying by 12, we see that ...
3 = L
The array is 3 kilometers long.
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