Use a proportion to solve the problem.To determine the number of fish in a lake, a park ranger catches 300 fish, tags them, and returns them to the lake. Later, 108 fish are caught, and it is found that 40 of them are tagged. Estimate the number of fish in the lake.
A. 810 fish
B. 1,296,000 fish
C. 111 fish
D. 14 fish
Answer: A
Mathematics
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The figure shows an angle ? in standard position with its terminal side intersecting the unit circle. Evaluate the indicated circular function value of ?.Find sin ?.
A. - 
B. 
C. - 
D. 
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What will be an ideal response?
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Find the cross-product and determine whether the proportion is true or false.
= 
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Mathematics