Perform the indicated operations and simplify.
+ 
+ 
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.Find an exponential function that models the data below and use it to predict about how many books will have been read in the eighth grade. 
A. 500 books B. 3000 books C. 1883 books D. 1000 books
Sketch the graph of the quadratic function. Identify the vertex and axis of symmetry.f(x) = (x + 4)2
A. vertex (-4, 0)
axis of symmetry: x = -4
B. vertex (0, 4)
axis of symmetry: x = 0
C. vertex (0, -4)
axis of symmetry: x = 0
D. vertex (4, 0)
axis of symmetry: x = 4
Find the equation of a circle satisfying the given conditions.Center: (0, -2); radius: 
A. (x - 2)2 + y2 = 4 B. (x + 2)2 + y2 = 4 C. x2 + (y + 2)2 = 2 D. x2 + (y - 2)2 = 2
Write an equation for the piecewise function.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 