Determine the vertex of the graph of the parabola.y = x2 + 1
A. (1, 0)
B. (-1, 0)
C. (0, 1)
D. (0,-1)
Answer: C
Mathematics
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Solve. Check for extraneous solutions.x1/3 - 2 = 4
A. {64}
B. {36}
C. {
}
D. {216}
Mathematics
Solve the problem.The revenue achieved by selling x graphing calculators is figured to be 
The cost of each calculator is 
How many graphing calculators must be sold to make a profit (revenue - cost) of at least $51.20?
A. {x ? 8 < x < 32} B. {x ? 9 < x < 7} C. {x ? -2 < x < 22} D. {x ? 10 < x < 30}
Mathematics
Solve by factoring:
Mathematics
Use a calculator to approximate the root to the nearest thousandth.
A. 4.313 B. 80.009 C. 79.996 D. 4.309
Mathematics