Solve the equation.3r + 4 = 25
A. 7
B. 22
C. 18
D. 4
Answer: A
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Sketch the graph of the quadratic function.f(x) = -2(x + 3)2 - 1
A. 
B. 
C. 
D. 
Solve the problem.The current I, in amperes, flowing through a particular ac (alternating current) circuit at time t seconds is I = 110 sin (50?t)What is the period and amplitude of the current?
A. period = 
second, amplitude = 50
B. period = 50? seconds, amplitude = 
C. period = 
second, amplitude = 300
D. period = 
second, amplitude = 110
Use the graph of f to sketch a graph of the inverse of f using a dashed curve.
A. 
B. 
C. 
D. 
Determine whether the relation represents a function. If it is a function, state the domain and range.{(-1, -4), (-2, -3), (-2, 0), (7, 3), (23, 5)}
A. function domain: {-1, 7, -2, 23} range: {-4, -3, 0, 3, 5} B. function domain: {-4, -3, 0, 3, 5} range: {-1, 7, -2, 23} C. not a function