Solve.xy - y2 = -6425xy - 9y2 = 0
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Answer: B
Mathematics
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Solve.How many 7-card hands are possible with a 52-card deck?
A. 18,009,460 B. 9.365 x 108 C. 1.338 x 108 D. 2,908,360
Mathematics
Solve.An endangered species of fish has a population that is decreasing exponentially 
The population 7 years ago was 1900. Today, only 900 of the fish are alive. Once the population drops below 100, the situation will be irreversible. When will this happen, according to the model? (Round to the nearest whole year.)
A. 22 years from today B. 23 years from today C. 21 years from today D. 20 years from today
Mathematics
Determine the unit rate.10 cents for 2 marbles
A. 5 cents/marble B. 20 cents/marble C. 12 marbles D. 0.2 cents/marble
Mathematics
Multiply 
by its complex conjugate and simplify.
A. 20
B. 
C. 
D. 32
E. 
Mathematics