Use a proportion to solve the problem.To determine the number of fish in a lake, a park ranger catches 280 fish, tags them, and returns them to the lake. Later, 144 fish are caught, and it is found that 45 of them are tagged. Estimate the number of fish in the lake.
A. 1,814,400 fish
B. 88 fish
C. 896 fish
D. 23 fish
Answer: C
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Write the binomial expansion of the expression.(-2x2 - y)5
A. 32x10 + 80x8y + 80x6y2 + 40x4y3 + 10x2y4 + y5 B. -32x10 - 80x8y + 80x6y2 - 40x4y3 + 10x2y4 - y5 C. -32x10 + 80x8y - 80x6y2 + 40x4y3 - 10x2y4 + y5 D. -32x10 - 80x8y - 80x6y2 - 40x4y3 - 10x2y4 - y5
Decide whether or not the ordered pair is a solution of the system.(6, 5)3x + y = 232x + 3y = 27
A. Yes B. No
Find approximate x-intercepts. Round the coordinates to the nearest tenth if necessary.y = 2x2 + 15x + 28
A. (-4, 0), (-3.5, 0) B. (-7, 0), (-2, 0) C. (-7, 0), (2, 0) D. (-4, 0), (3.5, 0)
Fill in the blank with one of the words or phrases listed below.
A(n) 
is a fraction whose numerator is greater than or equal to its denominator.
A. complex fraction B. improper fraction C. proper fraction D. mixed number