Solve the problem.The population of a particular city is increasing at a rate proportional to its size. It follows the function 
where k is a constant and t is the time in years. If the current population is 26,000, in how many years is the population expected to be 65,000?
A. 55 yr
B. 8 yr
C. 3 yr
D. 5 yr
Answer: B
Mathematics
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Choose the graph of the equation.z = x2- y2
A. 
B. 
C. 
D. 
Mathematics
Determine where the function is increasing and where it is decreasing.f(x) = x2 + 8x + 7
A. increasing on (-4, ?) decreasing on (-?, -4) B. increasing on (-?, -9) decreasing on (-9, ?) C. increasing on (-9, ?) decreasing on (-?, -9) D. increasing on (-?, -4) decreasing on (-4, ?)
Mathematics
Solve the system of equations by finding the reduced row echelon form for the augmented matrix. x + y - 2z = 83x+ z = - 6
A. 
B. 
C. 
D. 
Mathematics
Find the indicated output.P(x) = x2 + 2x + 4; find P(3).
A. -1 B. 7 C. 19 D. 11
Mathematics