Solve.The population of a small country increases according to the function 
where t is measured in years. How many people will the country have after 7 years?
A. 1,946,172
B. 813,337
C. 1,480,414
D. 1,872,777
Answer: C
Mathematics
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Find the domain and range of the inverse of the given function.f(x) = 
, x ? 0
A. Domain: [0, ?); range: (0, 5] B. Domain and range: [0, ?) C. Domain: (-?, 0}; range: [-5, 0) D. Domain: (0, 5]; range: [0, ?)
Mathematics
Determine a formula for the exponential function.
A. f(x) = 4 ? 1.2x B. f(x) = 4 ? 0.8x C. f(x) = 4 ? 1.4x D. f(x) = 5.76 ? 1.2x
Mathematics
Sketch the graph of the quadratic function. Identify the vertex and axis of symmetry.f(x) = (x - 11)2
A. vertex: (0, 0)
axis of symmetry: x = 0
B. vertex: (11, 0)
axis of symmetry: x = 11
C. vertex: (0, -11)
axis of symmetry: x = 0
D. vertex: (-11, 0)
axis of symmetry: x = -11
Mathematics
Solve the equation.
= x + 2
A. {6} B. {-6} C. {-5} D. {4}
Mathematics