Answer the question.What is the reciprocal of 
?
A. 1
B. 
C. 
D. 
Answer: D
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State the domain and range in interval notation.f(x) = -3x2 + 3x
A. domain: (-?, ?); range: 
B. domain: (-?, ?); range: 
C. domain: (-?, ?); range: 
D. domain: 
; range: (-?, ?)
The table below shows the number C, in millions, of cell phone subscribers t years after 2005. t 0 1 2 3 4 C 211.90 236.17 253.41 276.33 288.64? A: Use exponential regression to model the number of subscribers as a function of time. Round your answer to two decimal places.B: Plot the exponential model along with the data points.C: According to the exponential model, what is the yearly percentage increase in cell phone subscribers? Round your answer to the whole number.
What will be an ideal response?
Solve the problem.A spotlight has a parabolic cross section that is 6 ft wide at the opening and 2.5 ft deep at the vertex. How far from the vertex is the focus? Round answer to two decimal places.
A. 0.26 ft B. 0.21 ft C. 0.52 ft D. 0.90 ft
Find all complex solutions.16x3 + x = 0
A. ±
i
B. 0
C. 0, ±
i
D. 0, ±
i