Add or subtract as indicated. Write the answer in simplest form.
- 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve.m + 
= - 
A. 
B. 
C. 
D. 
Mathematics
Find the foci of the given hyperbola.
- 
= 1
A. (9, 0), (-9, 0) B. (0, 9), (0, -9) C. (2, 0), (-2, 0) D. (0, 2), (0, -2)
Mathematics
Determine whether the given point is on the graph of the equation.Equation: x2 + y2 = 4Point: (2, 0)
A. No B. Yes
Mathematics
Solve the problem.In 1990, the population of a country was estimated at 4 million. For any subsequent year the population, P(t) (in millions), can be modeled by the equation 
where t is the number of years since 1990. Estimate the year when the population will be 21 million.
A. approximately the year 2093 B. approximately the year 2041 C. approximately the year 2088 D. approximately the year 2016
Mathematics